RT Journal Article SR Electronic T1 The epidemiology of AIDS. JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 81 OP 82 DO 10.1136/jech.44.2.81 VO 44 IS 2 YR 1990 UL http://jech.bmj.com/content/44/2/81.abstract AB