TY - BOOK AU - Melnick,Sandra L. AU - Nowjack-Raymer,Ruth AU - Kleinman,Dushanka V. TI - A guide for epidemiological studies of oral manifestations of hiv infection SN - 9241544538 PY - 1993/// CY - Geneva PB - World Health Organization KW - HIV Infections-complications KW - Mouth Diseases-epidemiology KW - Epidemiologic KW - methods ER -