Maureen G. Phipps, MD, MPH and
MaryFran Sowers, PhD
At the time of the study, Maureen G. Phipps was with the Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor. MaryFran Sowers is with the Department of Epidemiology and Department of Obstetrics and Gynecology, University of Michigan School of Public Health, Ann Arbor.