1. Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, People's Republic of China
2. Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, People's Republic of China
3. Department of Gastric Surgery, Sun Yat-sen University Cancer Center, Guangdong, People's Republic of China
4. Department of Esophageal and Gastrointestinal Surgery, The Sixth Hospital Affiliated to Sun Yat-Sen University, Sun Yat-Sen University Research Center of Diagnosis and Treatment of Gastric Cancer, Guangzhou, People's Republic of China