1. Department of Endocrinology, General Hospital of Central Theater Command, Wuhan, China (J.X., L.S., Y.C., J.T., B.M., X.X., J.Z., L.Y., G.X.).
2. The First School of Clinical Medicine, Southern Medical University, Guangdong, China (J.X., L.S., Y.C., J.T., K.H., S.D., G.X.).
3. Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, China (H.M.).
4. Department of General Surgery, The Third Xiangya Hospital, Central South University, Hunan, China (H.Z.).