1. Department of Urology, Beijing Hospital, Beijing, People’s Republic of China
2. National Center of Gerontology, Beijing, People’s Republic of China
3. Institute of the Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
4. Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People’s Republic of China
5. Beijing Hospital Continence Center, Beijing, People’s Republic of China