00640nam 2200169z- 450 9910693960403321(CKB)4970000000046701(EXLCZ)99497000000004670120240129c2004uuuu -u- -engPrescription drugs : trends in usual and customary prices for drugs frequently used by Medicare and non-Medicare enrolleesWashington, DCPrescription DrugsDOCUMENT9910693960403321Prescription drugs : trends in usual and customary prices for drugs frequently used by Medicare and non-Medicare enrollees3875853UNINA