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Triplet births : trends and outcomes, 1971-94 / [by Joyce A. Martin, Marian F. MacDorman, and T.J. Mathews] (DHHS publication ; no. (PHS) 97-1933) (Vital and health statistics. Series 21, Data from the national vital statistics system ; no. 55)

Triplet births : trends and outcomes, 1971-94 / [by Joyce A. Martin, Marian F. MacDorman, and T.J. Mathews] (DHHS publication ; no. (PHS) 97-1933) (Vital and health statistics. Series 21, Data from the national vital statistics system ; no. 55)
Microform図書
1997<YCA-HE 20.6209:21/55>
National Diet Library
  • Subject Heading... -- statistics Pregnancy, Multiple -- United States -- statistics

Health and demographic characteristics of twin births : United States, 1988 (DHHS publication ; no. (PHS) 92-1928) (Vital and health statistics. Series 21, Data on natality, marriage, and divorce ; no. 50)

Health and demographic characteristics of twin births : United States, 1988 (DHHS publication ; no. (PHS) 92-1928) (Vital and health statistics. Series 21, Data on natality, marriage, and divorce ; no. 50)
Microform図書
1992<YCA-HE 20.6209:21/50>
National Diet Library
  • Subject Heading... -- statistics Pregnancy, Multiple -- United States -- statistics Twins -- United States -- sta...

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