title: U.S./European differences in condom use.
authors.forename: John
authors.initials: J
authors.lastname: Santelli
authors.forename: Theo G
authors.initials: TG
authors.lastname: Sandfort
authors.forename: Mark
authors.initials: M
authors.lastname: Orr
mesh_terms: D000293:Adolescent; D017280:Condoms / Q000706:statistics & numerical data*; D005060:Europe; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D021841:Safe Sex; D014481:United States