Segundo R. León Sandoval

Tecnólogo Médico, Magister en Enfermedades Infecciosas y Tropicales

Escuela Profesional de Tecnología Médica

Av. Juan Antonio Lavalle S/N, Ex-Hacienda Villa, Lima 09, Perú

Proyectos en ejecución:

  • Infecciones de Transmisión Sexual y Redes Sociales entre Inmigrantes y sus Anfitriones en Lima, Perú.


  1. Kojima N, Siebert JC, Maecker H, Rosenberg-Hasson Y, Leon SR, Vargas SK, Konda KA, Caceres CF, Klausner JD. Cytokine expression in Treponema pallidum infection. J Transl Med. 2019 Jun 11;17(1):196. doi: 10.1186/s12967-019-1947-7. PubMed PMID: 31186010; PubMed Central PMCID: PMC6558693.
  2. Béjar V, Villanueva F, León SR, Guevara-Granados JM, Uribe A, Vergaray G,Cuadra A, Sabogal I. [Molecular identification of Aspergillus fumigatus isolated from patients with invasive aspergillosis]. Rev Peru Med Exp Salud Publica. 2019 Jan-Mar;36(1):81-86. doi: 10.17843/rpmesp.2019.361.3403. Epub 2019 May 13.Spanish. PubMed PMID: 31116344.
  3. Soria J, Mugruza R, Levine M, León SR, Arévalo J, Ticona E, Beck IA, Frenkel LM. Pretreatment HIV Drug Resistance and Virologic Outcomes to First-Line Antiretroviral Therapy in Peru. AIDS Res Hum Retroviruses. 2019 Feb;35(2):150-154. doi: 10.1089/AID.2018.0239. Epub 2019 Jan 22. PubMed PMID: 30560685; PubMed Central PMCID: PMC6360394.
  4. Tafur KT, Coit J, Leon SR, Pinedo C, Chiang SS, Contreras C, Calderon R, Mendoza MJ, Lecca L, Franke MF. Feasibility of the string test for tuberculosis diagnosis in children between 4 and 14 years old. BMC Infect Dis. 2018 Nov 15;18(1):574. doi: 10.1186/s12879-018-3483-0. PubMed PMID: 30442105.
  5. Bristow CC, Kojima N, Lee SJ, Leon SR, Ramos LB, Konda KA, Brown B, Caceres CF, Klausner JD. HIV and syphilis testing preferences among men who have sex with men and among transgender women in Lima, Peru. PLoS One. 2018 Oct 29;13(10):e0206204. doi: 10.1371/journal.pone.0206204. eCollection 2018. PubMed PMID: 30372465.
  6. Flores JA, Brown B, León SR, Sánchez H, Galea JT. Individual-level characteristics associated with oral HIV test acceptability among Peruvian men who have sex with men and transgender women: a cross-sectional study. Sex Transm Infect. 2018 Mar 24. pii: sextrans-2017-053388. doi:10.1136/sextrans-2017-053388. [Epub ahead of print] PubMed PMID: 29574465.
  7. Wun KS, Reijneveld JF, Cheng TY, Ladell K, Uldrich AP, Le Nours J, Miners KL, McLaren JE, Grant EJ, Haigh OL, Watkins TS, Suliman S, Iwany S, Jimenez J, Calderon R, Tamara KL, Leon SR, Murray MB, Mayfield JA, Altman JD, Purcell AW, Miles JJ, Godfrey DI, Gras S, Price DA, Van Rhijn I, Moody DB, Rossjohn J. T cell autoreactivity directed toward CD1c itself rather than toward carried self lipids. Nat Immunol. 2018 Mar 12. doi: 10.1038/s41590-018-0065-7. [Epub ahead of print] PubMed PMID: 29531339.
  8. Galea JT, Wong M, Muñoz M, Valle E, Leon SR, Díaz Perez D, Kolevic L, Franke M. Barriers and facilitators to antiretroviral therapy adherence among Peruvian adolescents living with HIV: A qualitative study. PLoS One. 2018 Feb 15;13(2):e0192791. doi: 10.1371/journal.pone.0192791. eCollection 2018. PubMed PMID: 29447226; PubMed Central PMCID: PMC5813958.
  9. Vargas SK, Konda KA, Leon SR, Brown B, Klausner JD, Lindan C, Caceres CF. The Relationship Between Risk Perception and Frequency of HIV Testing Among Men Who Have Sex with Men and Transgender Women, Lima, Peru. AIDS Behav. 2018 Jan 8. doi: 10.1007/s10461-017-2018-9. [Epub ahead of print] PubMed PMID: 29313193.
  10. Scuffell J, Boccia D, Garcia Velarde F, Leon SR, Raviola G, Lecca L, Galea JT. Mental disorders and drug/alcohol use in patients commencing extensively drug-resistant tuberculosis treatment. Public Health Action. 2017 Sep 21;7(3):237-239. doi: 10.5588/pha.17.0044. PubMed PMID: 29201659; PubMed Central PMCID: PMC5677000.
  11. Allan-Blitz LT, Konda KA, Calvo GM, Vargas SK, Leon SR, Segura ER, Caceres CF, Klausner JD. High incidence of extra-genital gonorrheal and chlamydial infections among high-risk men who have sex with men and transgender women in Peru. Int J STD AIDS. 2017 Jan 1:956462417744098. doi: 10.1177/0956462417744098. [Epub ahead of print] PubMed PMID: 29183269.
  12. Galea JT, León SR, Peinado J, Calvo G, Zamora J, Sánchez H, Brown BJ. HPV knowledge, burden and genital wart location among heterosexually identified versus homosexually identified men who have sex with men in Lima, Peru: cross-sectional results from a cohort study. BMJ Open. 2017 Oct 24;7(10):e017338. doi: 10.1136/bmjopen-2017-017338. PubMed PMID: 29070638; PubMed Central PMCID: PMC5665270.
  13. Herrera MC, Konda KA, Leon SR, Brown B, Calvo GM, Salvatierra HJ, Caceres CF,  Klausner JD, Deiss R. Do Subjective Alcohol Screening Tools Correlate with Biomarkers Among High-Risk Transgender Women and Men Who Have Sex with Men in Lima, Peru? AIDS Behav. 2017 Nov;21(Suppl 2):253-261. doi: 10.1007/s10461-017-1933-0. PubMed PMID: 29043467.
  14. Joseph Davey D, Kojima N, Konda KA, Gupta P, Leon SR, Calvo GM, Caceres CF, Klausner JD. Transient aortitis documented by positron emission tomography in a case series of men and transgender women infected with syphilis. Sex Transm Infect. 2017 Dec;93(8):551-555. doi: 10.1136/sextrans-2017-053140. Epub 2017 Sep 2. PubMed PMID: 28866636.
  15. Kojima N, Park H, Konda KA, Joseph Davey DL, Bristow CC, Brown B, Leon SR, Vargas SK, Calvo GM, Caceres CF, Klausner JD. The PICASSO Cohort: baseline characteristics of a cohort of men who have sex with men and male-to-female transgender women at high risk for syphilis infection in Lima, Peru. BMC Infect Dis. 2017 Apr 11;17(1):255. doi: 10.1186/s12879-017-2332-x. PubMed PMID:28399798; PubMed Central PMCID: PMC5387233.
  16. Galea JT, Kinsler JJ, McLean S, Calvo G, Sánchez H, Leon SR, Brown B. Rectal Douching Prevalence and Practices Among Peruvian Men Who have Sex with Men and Transwomen: Implications for Rectal Microbicides. AIDS Behav. 2016 Nov;20(11):2555-2564. PubMed PMID: 26459331.
  17. Park H, Konda KA, Roberts CP, Maguiña JL, Leon SR, Clark JL, Coates TJ, Caceres CF, Klausner JD. Risk Factors Associated with Incident Syphilis in a Cohort of High-Risk Men in Peru. PLoS One. 2016 Sep 7;11(9):e0162156. oi:10.1371/journal.pone.0162156. eCollection 2016. PubMed PMID: 27602569; PubMed Central PMCID: PMC5014407.
  18. Flores JA, Vargas SK, Leon SR, Perez DG, Ramos LB, Chow J, Konda KA, Calvo GM, Salvatierra HJ, Klaussner JD, Caceres CF. Treponema pallidum pallidum Genotypes and Macrolide Resistance Status in Syphilitic Lesions among Patients at 2 Sexually Transmitted Infection Clinics in Lima, Peru. Sex Transm Dis. 2016 Jul;43(7):465-6. doi: 10.1097/OLQ.0000000000000465. PubMed PMID: 27322050.
  19. Konda KA, Castillo R, Leon SR, Silva-Santisteban A, Salazar X, Klausner JD, Coates TJ, Cáceres CF. HIV Status Communication with Sex Partners and Associated Factors Among High-Risk MSM and Transgender Women in Lima, Peru. AIDS Behav. 2017 Jan;21(1):152-162. doi: 10.1007/s10461-016-1444-4. PubMed PMID: 27262875; PubMed Central PMCID: PMC5136520.
  20. Brown B, Galea JT, Byraiah G, Poteat T, Leon SR, Calvo G, Sánchez H, Coates T, Klausner JD. Anogenital Human Papillomavirus Infection and HIV Infection Outcomes Among Peruvian Transgender Women: Results from a Cohort Study. Transgend Health. 2016 May 1;1(1):94-98. doi: 10.1089/trgh.2016.0001. eCollection 2016. PubMed PMID: 29159301; PubMed Central PMCID: PMC5685267.
  21. Herrera MC, Konda KA, Leon SR, Deiss R, Brown B, Calvo GM, Salvatierra HJ, Caceres CF, Klausner JD. Impact of alcohol use on sexual behavior among men who have sex with men and transgender women in Lima, Peru. Drug Alcohol Depend. 2016 Apr 1;161:147-54. doi: 10.1016/j.drugalcdep.2016.01.030. Epub 2016 Feb 16. PubMed PMID: 26896169; PubMed Central PMCID: PMC4807690.
  22. Allan-Blitz LT, Leon SR, Bristow CC, Konda KA, Vargas SK, Flores JA, Brown BJ, Caceres CF, Klausner JD. High prevalence of extra-genital chlamydial or gonococcal infections among men who have sex with men and transgender women in Lima, Peru. Int J STD AIDS. 2017 Feb;28(2):138-144. doi: 10.1177/0956462416630909. Epub 2016 Jul 10. PubMed PMID: 26846151; PubMed Central PMCID: PMC4972692.
  23. Bustamante MJ, Konda KA, Joseph Davey D, León SR, Calvo GM, Salvatierra J,Brown B, Caceres CF, Klausner JD. HIV self-testing in Peru: questionable availability, high acceptability but potential low linkage to care among men who have sex with men and transgender women. Int J STD AIDS. 2017 Feb;28(2):133-137.  doi: 10.1177/0956462416630674. Epub 2016 Jul 10. PubMed PMID: 26826160.
  24. Leon SR, Segura ER, Konda KA, Flores JA, Silva-Santisteban A, Galea JT, Coates TJ, Klausner JD, Caceres CF. High prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae infections in anal and pharyngeal sites among a community-based sample of men who have sex with men and transgender women in Lima, Peru. BMJ Open. 2016 Jan 6;6(1):e008245. doi: 10.1136/bmjopen-2015-008245. PubMed PMID: 26739719; PubMed Central PMCID: PMC4716251.
  25. Bristow CC, Leon SR, Huang E, Brown BJ, Ramos LB, Vargas SK, Flores JA, Caceres CF, Klausner JD. Field evaluation of a dual rapid diagnostic test for HIV infection and syphilis in Lima, Peru. Sex Transm Infect. 2016 May;92(3):182-5. doi: 10.1136/sextrans-2015-052326. Epub 2015 Dec 15. PubMed PMID: 26670914; PubMed Central PMCID: PMC4875763.
  26. Leon SR, Ramos LB, Vargas SK, Kojima N, Perez DG, Caceres CF, Klausner JD. Laboratory Evaluation of a Dual-Path Platform Assay for Rapid Point-of-Care HIV and Syphilis Testing. J Clin Microbiol. 2016 Feb;54(2):492-4. doi: 10.1128/JCM.03152-15. Epub 2015 Dec 9. PubMed PMID: 26659215; PubMed Central PMCID: PMC4733210.
  27. Bristow CC, Leon SR, Huang E, Ramos LB, Vargas SK, Flores JA, Konda KA, Caceres CF, Klausner JD. Field Evaluation of a Dual Rapid Immunodiagnostic Test for HIV and Syphilis Infection in Peru. Sex Transm Dis. 2016 Jan;43(1):57-60. doi: 10.1097/OLQ.0000000000000387. PubMed PMID: 26650998; PubMed Central PMCID: PMC4675040.
  28. Kojima N, Bristow CC, Maecker H, Rosenberg-Hasson Y, Leon SR, Vargas SK, Konda KA, Caceres CF, Klausner JD. Similarities in the Markers of Inflammation Between Men With Syphilis and Women With Increased Risk of HIV Acquisition. Clin Infect Dis. 2016 Jan 15;62(2):265-6. doi: 10.1093/cid/civ842. Epub 2015 Sep 22. PubMed PMID: 26394671; PubMed Central PMCID: PMC4731406.
  29. Castillo R, Konda KA, Leon SR, Silva-Santisteban A, Salazar X, Klausner JD, Coates TJ, Cáceres CF. Human Immunodeficiency Virus (HIV) and Sexually Transmitted Infection (STI) incidence and associated risk factors among high-risk MSM and male-to-female transgender women in Lima, Peru. J Acquir Immune Defic Syndr. 2015 May 6. [Epub ahead of print] PubMed PMID: 25950207.
  30. Galea JT, Kinsler JJ, Galan DB, Calvo G, Sánchez H, Leon SR, Klausner JD, Brown B. Factors associated with visible anogenital warts among hiv-uninfected peruvian men who have sex with men and transwomen: a cross-sectional study. Sex Transm Dis. 2015 Apr;42(4):202-7. doi: 10.1097/OLQ.0000000000000253. PubMed PMID:25763673.
  31. Bristow CC, Leon SR, Ramos LB, Vargas SK, Flores JA, Konda KA, Caceres CF, Klausner JD. Laboratory Evaluation of a Dual Rapid Immunodiagnostic Test for HIV and Syphilis Infection. J Clin Microbiol. 2014 Nov 5. pii: JCM.02763-14. [Epub ahead of print] PubMed PMID: 25378568.
  32. Brown B, Davtyan M, Leon SR, Sanchez H, Calvo G, Klausner JD, Galea J. A prospective cohort study characterising the role of anogenital warts in HIV acquisition among men who have sex with men: a study protocol. BMJ Open. 2014 Sep 16;4(9):e005687. doi: 10.1136/bmjopen-2014-005687. PubMed PMID: 25227629; PubMed Central PMCID: PMC4166134.
  33. Cabeza J, García PJ, Segura E, García P, Escudero F, La Rosa S, León S, Klausner JD. Feasibility of Chlamydia trachomatis screening and treatment in pregnant women in Lima, Peru: a prospective study in two large urban hospitals. Sex Transm Infect. 2014 Aug 8. pii: sextrans-2014-051531. doi: 10.1136/sextrans-2014-051531. [Epub ahead of print] PubMed PMID: 25107711
  34. Gonzales-Escalante E, Sevilla-Andrade R, León-Sandoval S. [CTX-M-type extended-spectrum β-lactamase in Shigella flexneri isolates from pediatric patients with acute diarrhea]. Rev Peru Med Exp Salud Publica. 2013 Jul;30(3):527-8. Spanish. PubMed PMID: 24100837.
  35. Deiss RG, Leon SL, Konda KA, Brown B, Segura ER, Galea JT, Caceres CF, Klausner JD. Characterizing the syphilis epidemic among men who have sex with men in Lima, Peru to identify new treatment and control strategies. BMC Infect Dis. 2013 Sep 10;13(1):426
  36. Gonzales-Escalante E, Vicente-Taboada W, Champi-Merino R, Soto-Pastrana J,Flores-Paredes W, Lovera-García M, Chuquiray-Valverde N, Bejarano-Cristobal C, Puray-Chávez M, León-Sandoval S. [Metalo-ß-lactamases in clinical isolates of pseudomonas aeruginosa in Lima, Peru]. Rev Peru Med Exp Salud Publica. 2013 Jun;30(2):241-5.
  37. Karina Flores and Segundo R. Leon. Diagnostic Accuracy Among 4 Point-of-Care Tests for the Screening of HIV Infection. Lab Medicine 2013 44:172-175
  38. Deiss RG, Clark JL, Konda KA, Leon SR, Klausner JD, Caceres CF, Coates TJ. Problem drinking is associated with increased prevalence of sexual risk behaviors among men who have sex with men (MSM) in Lima, Peru. Drug Alcohol Depend. 2013 Sep 1;132(1-2):134-9
  39. Maguiña JL, Konda KA, Leon SR, Lescano AG, Clark JL, Hall ER, Klausner JD, Coates TJ, Caceres CF; The NIMH Collaborative HIV/STD Prevention Trial Group. Relationship Between Alcohol Consumption Prior to Sex, Unprotected Sex and Prevalence of STI/HIV Among Socially Marginalized Men in Three Coastal Cities of  Peru. AIDS Behav. 2012 Sep 28. [Epub ahead of print] PubMed PMID: 23054035
  40. Silva-Santisteban A, Raymond HF, Salazar X, Villayzan J, Leon S, McFarland W, Caceres CF. Understanding the HIV/AIDS epidemic in transgender women of Lima, Peru: results from a sero-epidemiologic study using respondent driven sampling. AIDS Behav. 2012 May;16(4):872-81.
  41. Clark JL, Segura ER, Montano SM, Leon SR, Kochel T, Salvatierra HJ, Alcantara J, Cáceres CF, Coates TJ, Klausner JD. Routine laboratory screening for acute and recent HIV infection in Lima, Peru. Sex Transm Infect. 2010 Dec;86(7):545-7.
  42. Snowden JM, Konda KA, Leon SR, Giron JM, Escobar G, Coates TJ, Caceres CF, Klausner JD; NIMH HIV/STD Collaborative Intervention Trial. Recent syphilis infection prevalence and risk factors among male low-income populations in coastal Peruvian cities. Sex Transm Dis. 2010 Feb;37(2):75-80.
  43. León SR, Konda KA, Klausner JD, Jones FR, Cáceres CF, Coates TJ, et al. Chlamydia trachomatis infection and associated risk factors in a low-income marginalized urban population in coastal Peru. Rev Panam Salud Publica. 2009;26(1):39–45.
  44. Clark JL, Lescano AG, Konda KA, Leon SR, Jones FR, Klausner JD, Coates TJ,Caceres CF; NIMH International Collaborative HIV/STD Prevention Trial. Syndromic management and STI control in urban Peru. PLoS One. 2009 Sep 25;4(9):e7201.
  45. Clark JL, Konda KA, Segura ER, Salvatierra HJ, Leon SR, Hall ER, Caceres CF, Klausner JD, Coates TJ. Risk factors for the spread of HIV and other sexually transmitted infections among men who have sex with men infected with HIV in Lima, Peru. Sex Transm Infect. 2008 Nov;84(6):449-54.
  46. Segundo R. Leon, Kelika A. Konda, Kyle T. Bernstein, et al., “Trichomonas vaginalis Infection and Associated Risk Factors in a Socially-Marginalized Female Population in Coastal Peru,” Infectious Diseases in Obstetrics and Gynecology, vol. 2009, Article ID 752437, 6 pages, 2009. doi:10.1155/2009/752437
  47. Cáceres CF, Konda KA, Salazar X, Leon SR, Klausner JD, Lescano AG, Maiorana A, Kegeles S, Jones FR, Coates TJ; The NIMH HIV/STD Collaborative Intervention Trial. New Populations at High Risk of HIV/STIs in Low-income, Urban Coastal Peru. AIDS Behav. 2008 Jul;12(4):544-551
  48. Jesse L Clark, Benjamin Espinosa, Segundo R Leon, Eric R Hall, Hector J Salvatierra, Carlos F Cáceres, Jeffrey D Klausner, and Thomas J Coates. Absence of lymphogranuloma venereum infection among high-risk men who have sex with men in Lima, Peru. Int J STD AIDS, Jun 2008; 19: 427 – 428.
  49. Clark JL, Konda KA, Munayco CV, Pún M, Lescano AG, Leon SR, Pajuelo J, Suarez-Ognio L, Klausner JD, Coates TJ, Cáceres CF. Prevalence of HIV, herpes simplex virus-2, and syphilis in male sex partners of pregnant women in Peru. BMC Public Health. 2008 Feb 19;8:65.
  50. Clark JL, Caceres CF, Lescano AG, Konda KA, Leon SR, Jones FR, Kegeles SM, Klausner JD, Coates TJ; NIMH STD/HIV Collaborative Prevention Trial. Prevalence of same-sex sexual behavior and associated characteristics among low-income urban males in Peru. PLoS ONE. 2007 Aug 22;2(1):e778
  51. Mark J Siedner, Mark Pandori, Segundo R Leon, Benjamin J Espinosa, Eric R Hall, Carlos Caceres, Thomas J Coates, Jeffrey D Klausner, and The NIMH Collaborative HIV/STD Prevention Trial Group. Facilitating lymphogranuloma venereum surveillance with the use of real time polymerase chain reaction. Int J STD AIDS, Jul 2007; 18: 506 – 507.
  52. NIMH Collaborative HIV/STD Prevention Trial Group. Formative study conducted in five countries to adapt the community popular opinion leader intervention. AIDS. 2007 Apr;21 Suppl 2:S91-8. PubMed PMID: 17413268.
  53. NIMH Collaborative HIV/STD Prevention Trial Group. The community popular opinion leader HIV prevention programme: conceptual basis and intervention procedures. AIDS. 2007 Apr;21 Suppl 2:S59-68. PubMed PMID: 17413265.
  54. NIMH Collaborative HIV/STD Prevention Trial Group. Selection of populations represented in the NIMH Collaborative HIV/STD Prevention Trial. AIDS. 2007 Apr;21 Suppl 2:S19-28. PubMed PMID: 17413260.
  55. NIMH Collaborative HIV/STD Prevention Trial Group. Ethical issues in the NIMH Collaborative HIV/STD Prevention Trial. AIDS. 2007 Apr;21 Suppl 2:S69-80. PubMed PMID: 17413266.
  56. NIMH Collaborative HIV/STD Prevention Trial Group. Sexually transmitted disease and HIV prevalence and risk factors in concentrated and generalized HIV epidemic settings. AIDS. 2007 Apr;21 Suppl 2:S81-90. PubMed PMID: 17413267.
  57. NIMH Collaborative HIV/STD Prevention Trial Group. Methodological overview of a five-country community-level HIV/sexually transmitted disease prevention trial. AIDS. 2007 Apr;21 Suppl 2:S3-18. PubMed PMID: 17413262.
  58. NIMH Collaborative HIV/STD Prevention Trial. Role of the data safety and monitoring board in an international trial. AIDS. 2007 Apr;21 Suppl 2:S99-102. PubMed PMID: 17413269.
  59. NIMH Collaborative HIV/STD Prevention Trial Group. Design and integration of ethnography within an international behavior change HIV/sexually transmitted disease prevention trial. AIDS. 2007 Apr;21 Suppl 2:S37-48. PubMed PMID: 17413263; PubMed Central PMCID: PMC2610667.
  60. NIMH Collaborative HIV/STD Prevention Trial Group. Challenges and processes of selecting outcome measures for the NIMH Collaborative HIV/STD Prevention Trial. AIDS. 2007 Apr;21 Suppl 2:S29-36. PubMed PMID: 17413261.
  61. NIMH Collaborative HIV/STD Prevention Trial Group. The feasibility of audio computer-assisted self-interviewing in international settings. AIDS. 2007 Apr;21 Suppl 2:S49-58. PubMed PMID: 17413264.
  62. Jones FR, Miller G, Gadea N, Meza R, Leon S, Perez J, Lescano AG, Pajuelo J,Caceres CF, Klausner JD, Coates TJ; NIMH Collaborative HIV/STI Prevention Trial Group. Prevalence of bacterial vaginosis among young women in low-income populations of coastal Peru. Int J STD AIDS. 2007 Mar;18(3):188-92.
  63. Segundo R. Leon, Juan J. Perez, Rina Meza, Nilda Gadea, Julio A. Cuadros, Carlos F. Caceres, Jeffrey D. Klausner, Thomas J. Coates, Franca R. Jones. The Development and Use of an Automated Laboratory Information Management System (ALIMS) to Reduce Processing Time in a Microbiology Laboratory. Laboratory Medicine. 2006 Dic;37(12): 750-753.
  64. Long CM, Klausner JD, Leon S, Jones FR, Giron M, Cuadros J, Pajuelo J, Caceres C, Coates TJ; NIMH Collaborative HIV/STD Prevention Trial Group. Syphilis treatment and HIV infection in a population-based study of persons at high risk for sexually transmitted disease/HIV infection in Lima, Peru. Sex Transm Dis. 2006 Mar;33(3):151-5.
  65. Clark JL, Coates TJ, Lescano AG, Castillo R, Meza R, Jones FR, Leon S, Pajuelo J, Caceres CF, Klausner JD. Different positive predictive values of commercially available human immunodeficiency virus enzyme-linked immunosorbent assays. Clin Vaccine Immunol. 2006 Feb;13(2):302-3.
  66. Konda KA, Klausner JD, Lescano AG, Leon S, Jones FR, Pajuelo J, Caceres CF, Coates TJ; NIMH Collaborative HIV/STI Prevention Trial Group. The epidemiology of herpes simplex virus type 2 infection in low-income urban populations in coastal Peru. Sex Transm Dis. 2005 Sep;32(9):534-41.
  67. Miller GA, Klausner JD, Coates TJ, Meza R, Gaydos CA, Hardick J, Leon S, Caceres CF. Assessment of a rapid antigen detection system for Trichomonas vaginalis infection. Clin Diagn Lab Immunol. 2003 Nov;10(6):1157-8.
  68. León, Segundo. Inmunoanálisis Ligado a Enzimas en Membranas de Nitrocelulosa para la Determinación de IgM en el Diagnóstico de Dengue serotipo 1. Anales de la Facultad de Medicina. 1999;60(2): 110-114.

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