1. Department of Medicine; Chung Shan Medical University Hospital; Taichung; 402, Taiwan
2. Department of Statistics and Informatics Science; Providence University; Taichung; Taiwan
3. Jason Life Tech Inc., Salvia Medical Research Center; Taichung; Taiwan
4. School of Medicine, Chung Shan Medical University; Department of Internal Medicine, Chung Shan Medical University Hospital; Taichung; 402, Taiwan