1. Division of Nephrology, Department of Internal Medicine, Chi-Mei Medical Center , Tainan 71004 , Taiwan
2. Department of Health and Nutrition, Chia Nan University of Pharmacy and Science , Tainan 71710 , Taiwan
3. Department of Urology, College of Medicine, National Taiwan University , Taipei 106319 , Taiwan
4. Department of Urology, National Taiwan University Hospital , Taipei 100225 , Taiwan
5. Department of Internal Medicine, National Taiwan University Hospital , Taipei 100225 , Taiwan
6. Department of Sport Management, College of Leisure and Recreation Management, Chia Nan University of Pharmacy and Science , Tainan 71710 , Taiwan