Chunk #5 — Materials and methods — DNA samples

Source

Association between polymorphisms in catechol-O-methyltransferase (COMT) and cocaine-induced paranoia in European-American and African-American populations.

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yes

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For the study of selection, unrelated self-identified AA and EA subjects, screened by SSADDA to exclude psychiatric illness, were recruited at Yale University School of Medicine, University of Connecticut Health Center, and Medical University of South Carolina. All subjects provided informed consent as approved by the appropriate institutional review boards.