02066oam 2200589 450 991071331100332120200413082159.0(CKB)5470000002500537(OCoLC)1084293275(OCoLC)973346215(EXLCZ)99547000000250053720190204d1982 ua 0engurun||||a|a||txtrdacontentcrdamediacrrdacarrierA method of imputing length of gestation on birth certificates /by Selma Taffel, David Johnson, and Robert HeuserHyattsville, Md. :U.S. Department of Health and Human Services, Public Health Services, Office of Health Research, Statistics, and Technology, National Center for Health Statistics,1982.1 online resource (iv, 11 pages) illustrationsVital & health statistics. Series 2, Data evaluation and methods research ;no. 93DHHS publications ;no. (PHS) 82-1367"May 1982."ConceptionDate ofPregnancyDurationUnited StatesStatisticsBirth certificatesUnited StatesConceptionDate offastPregnancyDurationfastUnited StatesfastTables (Data)fastStatistics.fastTables.fastStatistics.lcgftConceptionDate of.PregnancyDurationBirth certificatesConceptionDate of.PregnancyDuration.Taffel Selma1413854Johnson David P.Heuser Robert L.National Center for Health Statistics (U.S.),OCLCEOCLCEOCLCQU3GOCLCFSXTGPOBOOK9910713311003321A method of imputing length of gestation on birth certificates3511328UNINA