1. National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China (mainland)
2. Department of Medical Oncology, Affiliated Chaozhou Central Hospital, Southern Medical University, Chaozhou, Guangdong, China (mainland)
3. Department of General Surgery, Affiliated Chaozhou Central Hospital, Southern Medical University, Chaozhou, Guangdong, China (mainland)
4. Department of Human Anatomy, School of Preclinical Medicine, Guangxi Medical University, Nanning, Guangxi, China (mainland)