00697nam a22002777i 4500 20141212093240.0 911220s1991 sp gr 000 0 spa c eng COOPER, J.R. METHADONE TREATMENT AND ACQUIRED IMMUNODEFICIENCY SYNDROME Drogodependencias Metadona Prevención Sida Tratamiento Adicciones Documental JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION Vol. 262, no. 12 (1989), p. 1664-1668 17.3 42 A3c Q4a AR 19911220 Q4a FOL. 7 D42 FOL. 84 AR