Next steps for birth defects research and prevention: The birth defects study to evaluate pregnancy exposures (BD-STEPS).
Tinker SC, Carmichael SL, Anderka M, Browne ML, Caspers Conway KM, Meyer RE, Nembhard WN, Olney RS, Reefhuis J. Next steps for birth defects research and prevention: The birth defects study to evaluate pregnancy exposures (BD-STEPS). Birth Defects Res A Clin Mol Teratol. 2015 Aug; 103(8):733-40.