Acquired immunodeficiency syndrome among patients attending hemophilia treatment centers and mortality experience of hemophiliacs in the United States - Johnson, R E; Lawrence, D N; Evatt, B L; Bregman, D J; Zyla, L D; Curran, J W; Aledort, L M; Eyster, M E; Brownstein, A P; Carmen, C J (Am J Epidemiol, 1985)