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Study Methodology and Sample Characteristics in the Longitudinal-Study of Pregnant-Women, the Study of Children, and the Food Expenditures Study
Rush, D., Horvitz, D., Seaver, WB., Leighton, J., Sloan, NL., Johnson, SS., Kulka, R., Devore, J., Holt, M., Lynch, J., Virag, T., Woodside, M., & Shanklin, DS. (1988). Study Methodology and Sample Characteristics in the Longitudinal-Study of Pregnant-Women, the Study of Children, and the Food Expenditures Study. American Journal of Clinical Nutrition, 48(2), 429-438.
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