1. Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
2. Larry L. Hillblom Islet Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
3. Groote Schuur and Red Cross Children’s Hospital, University of Cape Town, South Africa
4. Lazar Retina Ophthalmology, Los Angeles, CA, USA