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Trends in pregnancies and pregnancy rates: estimates for the United States, 1980-92 - Hyattsville National Center for Health Statistics; CDC 2000 - 47 - (Vital and Health Statistics; 21. Data on Natality, Marriage and Divorce; 57) .

ISBN: 0840605617

Index Terms--Genre/Form:
ABORTO
ABORTO ESPONTANEO
EMBARAZO
MORTALIDAD FETAL
PARTO
ESTADOS UNIDOS

Universal Decimal Class. No.: 312.1(73)