1. Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
2. Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research, Medical Sector, University of Louvain, 1200 Brussels, Belgium
3. Neurology Unit, Daping Hospital, Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, China