1. Department of Oncology, Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
2. Medical Research Center, Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
3. Islet Cell Laboratory, MedStar Georgetown University Hospital, Washington, DC 20007, USA
4. Institute of Basic Medical Sciences and Key Laboratory of Cardiovascular Proteomics of Shandong Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China