1. Department of Endocrinology, Gansu Provincial People’s Hospital, 204 West Donggang Road, Lanzhou City 730000, Gansu Province, China
2. The First Clinical College of Lanzhou University, Lanzhou City 730000, Gansu Province, China
3. Department of Pneumology, Gansu Provincial People’s Hospital, 204 West Donggang Road, Lanzhou City 730000, Gansu Province, China