1. Department of Physiology and Pain Research Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
2. Department of Pain Medicine, The Eighth Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, China
3. Department of General Internal Medicine, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
4. Department of Hematology, The Third Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China