title: Pre-marital sex causing concern.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control / Q000635:transmission*; D000293:Adolescent; D000294:Adolescent Behavior; D005260:Female; D006801:Humans; D008297:Male; D008393:Marriage; D012309:Risk-Taking; D012725:Sexual Behavior