1. Department of Thoracic Surgery, Yuebei People’s Hospital, Shantou University, Shaoguan, Guangdong, People’s Republic of China
2. Department of Pathology, Yuebei People’s Hospital, Shantou University, Shaoguan, Guangdong, People’s Republic of China
3. College of Physical Education and Health, Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China