1. Department of Internal Medicine, University of Iowa - Des Moines, Des Moines, Iowa, USA.
2. Department of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA.
3. University of Iowa Institute for Clinical and Translational Science, Iowa City, Iowa, USA.
4. Department of Dermatology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA.
5. VA Medical Center, Iowa City, Iowa, USA.