1. From the Department of Obstetrics, Gynecology, and Reproductive Sciences (R.W.P., J.M.R., A.J., C.A.H.), R.E.G., Magee-Womens Research Institute (R.W.P., J.M.R., D.A.P., A.J., C.A.H., R.E.G.), Department of Epidemiology (J.M.R.), Department of Environmental and Occupational Health (C.A.H., R.E.G.), and Clinical and Translational Research (R.W.P., J.M.R.), University of Pittsburgh, Pittsburgh, PA; Abbott Laboratories (D.P., S.A.D., D.M.L., D.C.S.), Abbott Park, IL.