000 00254nam a2200097Ia 4500
022 _a1020-4989
245 _aPAN AMERICAN JOURNAL OF PUBLIC HEALTH
260 _bPan American Health Orgnization
_aWashington, D.C.US
583 _c6/6/00
_kSANDRA_W
942 _cS
999 _c22870
_d22870