Neurologic Manifestations of HIV Infection
Ann Int Med 121:769-785, Simpson,D.M.&Tagliati,M., 1994
Cerebral Syphilitic Gumma Confirmed by the Polymerase Chain Reaction in a Man with HIV Infection
NEJM 331:1488-1491, 15161994., Horowitz,H.W.,et al, 1994