1. Department of Reproductive Medicine, University of California San Diego, San Diego, CA, USA
2. Reproductive Partners San Diego, La Jolla, CA, USA
3. Diabetes, Education and Nutrition Department, Mercy Regional Medical Center, Durango, CO, USA
4. David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
5. Department of Advanced Medical and Surgical Sciences, Diabetes Unit, University of Campania “Luigi Vanvitelli”, Naples, Italy