1. Department of Health Sciences and Mother and Child Care, University of Palermo, Palermo, Italy
2. Department of Health Policy, Management, and Behavior, School of Public Health, University at Albany, State University of New York, Albany, New York
3. Department of Dermatology, Cleveland Clinic, Cleveland, Ohio
4. Department of Pathology, Cleveland Clinic, Cleveland, Ohio
5. Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, Madrid, Spain
6. Centro de Investigación Biomédica en Red Diabetes y Enfermedades Metabólicas Asociadas, Madrid Spain
7. Instituto Ramón y Cajal de Investigación Sanitaria, Madrid, Spain
8. Mount Sinai School of Medicine, New York, New York
9. Department of Obstetrics and Gynecology, University of California at San Francisco, San Francisco, California
10. Department of Obstetrics and Gynecology, Columbia University, New York, New York
11. Department of Dermatology, Duke University Medical Center, Durham, North Carolina
12. Department of Medicine, Duke University Medical Center, Durham, North Carolina