1. Department of Pediatrics; Chang Gung Memorial Hospital at Keelung; Chang Gung University; Taoyuan Taiwan
2. Community Medicine Research Centre; Chang Gung Memorial Hospital; Keelung Taiwan
3. Department of Pediatrics; Chang Gung Memorial Hospital at Linkou; Chang Gung University; Taoyuan Taiwan
4. Department of Medical Imaging and Intervention; Chang Gung Memorial Hospital at Linkou; Chang Gung University; Taoyuan Taiwan
5. Department of Medical Biotechnology and Laboratory Science; College of Medicine; Chang Gung University; Taoyuan Taiwan
6. Healthy Aging Research Center; Chang Gung University; Taoyuan Taiwan