1. Department of Urology, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
2. Department of Clinical Nutrition, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
3. Department of Nutrition and Food Safety, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China