Acquired immunodeficiency syndrome (AIDS). AIDS-related knowledge and behaviour among teenagers, 1990.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control* / Q000635:transmission; D000293:Adolescent; D003275:Contraceptive Devices, Male / Q000706:statistics & numerical data; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007558:Italy; D008297:Male; D012725:Sexual Behavior