1 Department of Internal Medicine, Division of Rheumatology, Department of Obstetrics & Gynecology, University of Michigan, North Campus Research Complex, B014 G2362800 Plymouth Rd, SPC 2800, Ann Arbor, MI 48109-2800, USA. Electronic address: wmarder@umich.edu.
2 Department of Obstetrics and Gynecology, University of Michigan, 1500 E Medical Center Drive SPC 5276, Ann Arbor MI 48019-5276, USA. Electronic address: trbj@umich.edu.