Cooper, PJ; Chico, ME; Vaca, MG; Rodriguez, A; Alcantara-Neves, NM; Genser, B; de Carvalho, LP; Stein, RT; Cruz, AA; Rodrigues, LC; +1 more... Barreto, ML; (2006) Risk factors for asthma and allergy associated with urban migration: background and methodology of a cross-sectional study in Afro-Ecuadorian school children in Northeastern Ecuador (Esmeraldas-SCAALA Study). BMC pulmonary medicine, 6. p. 24. ISSN 1471-2466 DOI: https://doi.org/10.1186/1471-2466-6-24

Paz-Bailey, G; Koumans, EH; Sternberg, M; Pierce, A; Papp, J; Unger, ER; Sawyer, M; Black, CM; Markowitz, LE; (2005) The effect of correct and consistent condom use on chlamydial and gonococcal infection among urban adolescents. Archives of pediatrics & adolescent medicine, 159 (6). pp. 536-42. ISSN 1072-4710 DOI: https://doi.org/10.1001/archpedi.159.6.536