TY - BOOK AU - National Center for Health Statistics (U.S.) TI - Natality PB - U. S. Depertment of Health and Human Services, Public Health Service PY - 1987 T2 - DHHS publication VL - no. (PHS) 87-1113 . Vital statistics of the United States, 1983 ; vol. 1 EP - 1 v. UR - https://ci.nii.ac.jp/ncid/BB00918336 ER -

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