1. General Surgery Department and Central Laboratory, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, People's Republic of China
2. Pharmacy Department, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, People's Republic of China
3. Department of Pathology, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
4. Department of General Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China
5. Central Laboratory, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, People's Republic of China