AIDS prevention strategies.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control*; D003275:Contraceptive Devices, Male / Q000706:statistics & numerical data; D005260:Female; D006266:Health Education / Q000379:methods*; D006801:Humans; D008297:Male; D009426:Netherlands; D012725:Sexual Behavior; D019966:Substance-Related Disorders / Q000150:complications; D013557:Switzerland; D014481:United States