HIV surveys should be treated with caution.
D005260:Female; D015658:HIV Infections / Q000150:complications / Q000453:epidemiology*; D006306:Health Surveys; D006801:Humans; D008131:London / Q000453:epidemiology; D008297:Male; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology*; D012725:Sexual Behavior