Additional file 1: of Reproductive outcomes after non-occupational exposure to hexavalent chromium, Willits California, 1983-2014

Selecting records and classifying conditions. Groupers used to select pregnancies, identify deliveries, and categorize pregnancy outcomes. Groupers used to select infants, identify births, and categorize infant-specific outcomes. CCS diagnosis and procedure groupers used to classify other conditions and outcomes. (PDF 65 kb)