1. Department of Endocrinology & Metabolism, West China Hospital, Sichuan University, Chengdu 610041, China
2. Innovation Research Center for Diabetic Foot, Diabetic Foot Care Center, West China Hospital, Sichuan University, Chengdu 610041, China
3. Department of Clinical Research Management, West China Hospital, Sichuan University, Chengdu 610041, China
4. West China School of Nursing, Sichuan University, Chengdu 610041, China
5. Wannian Community Health Center in Chenghua District, Chengdu 610051, China
6. The Third People’s Hospital of Chenghua District, Chengdu 610051, China