1. Department of Urology, Minimally Invasive Surgery Center, First Affiliated Hospital of Guangzhou Medical University, Guangdong Key Laboratory of Urology, Guangdong, People's Republic of China
2. Venus International Hospital, Kathmandu, Nepal
3. Department of Urology, Central Hospital of Shaoyang, Hunan, People's Republic of China
4. Department of Urology, Shantou Central Hospital, Guangdong, People's Republic of China
5. Department of Urology, Hunan Chenzhou No. 4 People's Hospital, Hunan, People's Republic of China
6. Department of Urology, Zhuzhou Kind Cardiovascular Disease Hospital, Hunan, People's Republic of China