TY - GEN AU - Melnick, S.L AU - Kleinman, D.V AU - Raymer, R.N AU - Swango, P.A TI - A guide for epidemiological studies of oral manifestations of HIV infection SN - 9241544538 U1 - 614.57 PY - 1993/// CY - Geneva PB - WHO KW - EPIDEMIOLOGIC METHODS KW - HIV INFECTIONS-COMPLICATIONS ER -