title: [Syphilis. Various aspects of its ecology and epidemiological behavior].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008800:Mexico; D008875:Middle Aged; D013587:Syphilis / Q000453:epidemiology* / Q000276:immunology / Q000401:mortality
vernacular_title: Sífilis. Algunos aspectos sobre su ecología y comportamiento epidemiológico