00654nam 2200157z- 450 9910712162203321(CKB)5470000002490489(EXLCZ)99547000000249048920230509c1994uuuu -u- -engPlan and operation of the National Hospital Ambulatory Medical SurveyU.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Center for Health StatisticsHyattsville, MarylandBOOK9910712162203321Plan and operation of the National Hospital Ambulatory Medical Survey3334319UNINA