title: Taking sexual histories: now it's essential.
authors.forename: M C
authors.initials: MC
authors.lastname: Johnson
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control*; D003273:Contraceptive Devices; D005260:Female; D006801:Humans; D008297:Male; D008487:Medical History Taking; D012725:Sexual Behavior