1. Lindsay K. Admon and Vanessa K. Dalton are with the Department of Obstetrics and Gynecology at the University of Michigan, Ann Arbor. L. K. Admon was also with the US Department of Veterans Affairs, Ann Arbor, at the time this work was completed. Caroline R. Richardson is with the Department of Family Medicine at the University of Michigan. Katy B. Kozhimannil is with the Division of Health Policy and Management, University of Minnesota School of Public Health, Minneapolis. Gavin Bart is with the...