Valenzuela, Claudia P., author.
Hyattsville, MD : U.S. Department of Health & Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, 2023.
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Mathews, T. J.
Hyattsville, MD : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Center for Health Statistics, [2009]
2009