00522nam a22001817i 450000500170000000800410001704100080005810000170006624500630008365000220014665000130016865000170018165000090019865000160020765300150022365500150023877300870025320141212093240.0911220s1991    sp     gr     000 0 spa c  aeng1 aCOOPER, J.R.10aMETHADONE TREATMENT AND ACQUIRED IMMUNODEFICIENCY SYNDROME14aDrogodependencias14aMetadona14aPrevención14aSida14aTratamiento10aAdicciones 4aDocumental0 tJOURNAL OF THE AMERICAN MEDICAL ASSOCIATIONgVol. 262, no. 12 (1989), p. 1664-1668