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search engines. OCR for page 15 The National Children’s Study
Research Plan: A Review 1 Introduction The National Children’s
Study (NCS) is planned to be the largest long-term study of
environmental and genetic effects on children’s health ever
conducted in the United States. It proposes to examine the
effects of environmental influences on the health and
development of approximately 100,000 children across the United
States, following them from be