• Organization: Department of Justice
• Updated: 2006-05-12T00:00:00

The Project on Human Development in Chicago Neighborhoods (PHDCN) was a large-scale, interdisciplinary study of how families, schools, and neighborhoods affect child and adolescent...

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• Organization: Department of Justice
• Updated: 2006-10-11T00:00:00

The Project on Human Development in Chicago Neighborhoods (PHDCN) was a large-scale, interdisciplinary study of how families, schools, and neighborhoods affect child and adolescent...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2022-02-18

We used data from CDC's National Birth Defect Prevention Study, the largest case-control study of birth defects ever conducted. Data were collected for cases and controls via a computer-assisted...