1. Department of Andrology, The First Affiliated Hospital Sun Yat‐sen University Guangzhou China
2. Reproductive Centre, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou China
3. Guangdong Provincial Key Laboratory of Orthopedics and Traumatology Guangzhou China
4. Gastrointestinal Diseases Research Institute of Guangdong Province, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou China