1 Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
2 Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
3 Department of Obstetrics and Gynecology, Ohio State University College of Medicine, Columbus.
4 Department of Obstetrics, Gynecology, and Reproductive Services, Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
5 Department of Cardiology, Barbra Streisand Women's Heart Center, Smidt Cedars-Sinai Heart Institute, Los Angeles, California.
6 Department of Obstetrics and Gynecology, University of California, Irvine.
7 Department of Applied Exercise Science, School of Kinesiology, University of Michigan, Ann Arbor.
8 Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis.
9 Department of Obstetrics and Gynecology, University of Pennsylvania Perelman School of Medicine, Philadelphia.
10 RTI International, Research Triangle Park, North Carolina.
11 Department of Neurology, Columbia University, New York, New York.
12 Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Galveston.
13 Department of Obstetrics and Gynecology, University of Utah, Salt Lake City.
14 Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
15 Case Western Reserve University School of Medicine, Cleveland, Ohio.
16 Department of Obstetrics and Gynecology, Columbia University, New York, New York.