00604nam 2200157z- 450 9910712279203321(CKB)5470000002491327(EXLCZ)99547000000249132720230509c1994uuuu -u- -engCesarean delivery in the United States, 1990U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Center for Health StatisticsHyattsville, MarylandBOOK9910712279203321Cesarean delivery in the United States, 19903322946UNINA