title: [Epidemiological factors involved in perianal streptococcal disease].
authors.forename: M
authors.initials: M
authors.lastname: Echeverría Fernández
authors.forename: F
authors.initials: F
authors.lastname: González Martínez
authors.forename: R
authors.initials: R
authors.lastname: Marañón Pardillo
mesh_terms: D001004:Anus Diseases / Q000453:epidemiology* / Q000382:microbiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011446:Prospective Studies; D013290:Streptococcal Infections / Q000453:epidemiology*