| 1. | Beech DJ, Madan AK, Aliabadi-Wahle S, et al. Synchronous occurrence of glioblastoma multiforme and esophageal adenocarcinoma[J]. Am Surg, 2003, 69(2):136-139. | 
				                                                        
				                                                            
				                                                                | 2. | Edge SB, Compton CC. The American joint committee on cancer:the 7th edition of the AJCC cancer staging manual and the future of TNM[J]. Ann Surg Oncol, 2010, 17(6):1471-1474. | 
				                                                        
				                                                            
				                                                                | 3. | Kumagai Y, Kawano T, Nakajima Y, et al. Multiple primary cancers associated with esophageal carcinoma[J]. Surg Today, 2001, 31(10):872-876. | 
				                                                        
				                                                            
				                                                                | 4. | Bae JS, Lee JH, Ryu KW, et al. Characteristics of synchronous cancers in gastric cancer patients[J]. Cancer Res Treat, 2006, 38(1):25-29. | 
				                                                        
				                                                            
				                                                                | 5. | Yasumura T, Maruyama T, Kaji S, et al. Complete response in a case of advanced esophageal and gastric double cancer treated by chemotherapy of TS-1 and low-dose cisplatin[J]. Gan To Kagaku Ryoho, 2006, 33(13):2069-2071. | 
				                                                        
				                                                            
				                                                                | 6. | Yano K, Yamashita T, Chishiki M, et al. Two cases of synchro-nous superficial double cancers in the esophagus and stomach[J].J UOEH, 2002, 24(2):225-232. | 
				                                                        
				                                                            
				                                                                | 7. | Noguchi H, Naomoto Y, Kondo H, et al. Evaluation of endoscopicmucosal resection for superficial esophageal carcinoma[J]. Surg Laparosc Endosc Percutan Tech, 2000, 10(6):343-350. | 
				                                                        
				                                                            
				                                                                | 8. | Yokoyama A, Ohmori T, Makuuchi H, et al. Successful screeningfor early esophageal cancer in alcoholics using endoscopy and mucosa iodine staining[J]. Cancer, 1995, 76(6):928-934. | 
				                                                        
				                                                            
				                                                                | 9. | Kim HS, Lee DK, Baik SK, et al. Endoscopic mucosal resection with a ligation device for early gastric cancer and precancerouslesions:comparison of its therapeutic efficacy with surgical resection[J]. Yonsei Med J, 2000, 41(5):577-583. | 
				                                                        
				                                                            
				                                                                | 10. | Nishimura Y, Okuno Y, Ono K, et al. External beam radiation therapy with or without high-dose-rate intraluminal brachytherapy for patients with superficial esophageal carcinoma[J]. Cancer, 1999, 86(2):220-228. | 
				                                                        
				                                                            
				                                                                | 11. | Vallböhmer D, Hölscher AH, DeMeester S, et al. A multicenter study of survival after neoadjuvant radiotherapy/chemotherapy and esophagectomy for ypT0N0M0R0 esophageal cancer[J]. Ann Surg, 2010, 252(5):744-749. | 
				                                                        
				                                                            
				                                                                | 12. | Kim TJ, Kim HY, Lee KW, et al. Multimodality assessment ofesophageal cancer:preoperative staging and monitoring of responseto therapy[J]. Radiographics, 2009, 29(2):403-421. | 
				                                                        
				                                                            
				                                                                | 13. | Bergman JJ. The endoscopic diagnosis and staging of oesophagealadenocarcinoma[J]. Best Pract Res Clin Gastroenterol, 2006, 20(5):843-866. | 
				                                                        
				                                                            
				                                                                | 14. | Vazquez-Sequeiros E, Norton ID, Clain JE, et al. Impact of EUS-guided fine-needle aspiration on lymph node staging in patients with esophageal carcinoma[J]. Gastrointest Endosc, 2001, 53(7):751-757. | 
				                                                        
				                                                            
				                                                                | 15. | Vazquez-Sequeiros E, Wiersema MJ, Clain JE, et al. Impact of lymph node staging on therapy of esophageal carcinoma[J]. Gastroenterology, 2003, 125(6):1626-1635. | 
				                                                        
				                                                            
				                                                                | 16. | Abdalla EK, Pisters PW. Staging and preoperative evaluation of upper gastrointestinal malignancies[J]. Semin Oncol, 2004, 31(4):513-529. | 
				                                                        
				                                                            
				                                                                | 17. | Kwee RM, Kwee TC. Imaging in local staging of gastric cancer:a systemic review[J]. J Clin Oncol, 2007, 25(15):2107-2116. | 
				                                                        
				                                                            
				                                                                | 18. | Weber WA, Ott K. Imaging of esophageal and gastric cancer[J]. Semin Oncol, 2004, 31(4):530-541. | 
				                                                        
				                                                            
				                                                                | 19. | National Comprehensive Cancer Network. NCCN guidlines ver-sion 2[EB/OL]. 2013-04-25. http://www. nccn. org/professional/physician_gls/pdf/gastric. pdf. | 
				                                                        
				                                                            
				                                                                | 20. | Stahl A, Ott K, Weber WA, et al. FDG PET imaging of locally advanced gastric carcinomas:correlation with endoscopic and histopathological findings[J]. Eur J Nucl Med Mol Imaging, 2003, 30(2):288-295. | 
				                                                        
				                                                            
				                                                                | 21. | Chen J, Cheong JH, Yun MJ, et al. Improvement in preoperative staging of gastric adenocarcinoma with positron emission tomography[J]. Cancer, 2005, 103(11):2383-2390. | 
				                                                        
				                                                            
				                                                                | 22. | Bentrem D, Gerdes H, Tang L, et al. Clinical correlation of endoscopic ultrasonography with pathologic stage and outcome in patients undergoing curative resection for gastric cancer[J]. Ann Surg Oncol, 2007, 14(6):1853-1859. | 
				                                                        
				                                                            
				                                                                | 23. | Okada K, Fujisaki J, Kasuga A, et al. Endoscopic ultrasonography is valuable for identifying early gastric cancers meeting expanded-indication criteria for endoscopic submucosal dissection[J]. Surg Endosc, 2011, 25(3):841-848. | 
				                                                        
				                                                            
				                                                                | 24. | Matsumoto Y, Yanai H, Tokiyama H, et al. Endoscopic ultrason-ography for diagnosis of submucosal invasion in early gastric cancer[J]. J Gastroenterol, 2000, 35(5):326-331. | 
				                                                        
				                                                            
				                                                                | 25. | Tsendsuren T, Jun SM, Mian XH. Usefulness of endoscopic ultr-asonography in preoperative TNM staging of gastric cancer[J]. World J Gastroenterol, 2006, 12(1):43-47. | 
				                                                        
				                                                            
				                                                                | 26. | Mekky MA, Yamao K, Sawaki A, et al. Diagnostic utility of EUS-guided FNA in patients with gastric submucosal tumors[J]. Gastrointest Endosc, 2010, 71(6):913-919. | 
				                                                        
				                                                            
				                                                                | 27. | Sarela AI, Lefkowitz R, Brennan MF, et al. Selection of patients with gastric adenocarcinoma for laparoscopic staging[J]. Am J Surg, 2006, 191(1):134-138. | 
				                                                        
				                                                            
				                                                                | 28. | Oda I, Saito D, Tada M, et al. A multicenter retrospective study of endoscopic resection for early gastric cancer[J]. GastricCancer, 2006, 9(4):262-270. | 
				                                                        
				                                                            
				                                                                | 29. | Cao Y, Liao C, Tan A, et al. Meta-analysis of endoscopic submucosal dissection versus endoscopic mucosal resection for tumors of the gastrointestinal tract[J]. Endoscopy, 2009, 41(9):751-757. | 
				                                                        
				                                                            
				                                                                | 30. | Hoteya S, Iizuka T, Kikuchi D, et al. Benefits of endoscopic submucosal dissection according to size and location of gastric neoplasm, compared with conventional mucosal resection[J]. J Gastroenterol Hepatol, 2009, 24(6):1102-1106. | 
				                                                        
				                                                            
				                                                                | 31. | Nakamoto S, Sakai Y, Kasanuki J, et al. Indications for the use of endoscopic mucosal resection for early gastric cancer in Japan:a comparative study with endoscopic submucosal dissection[J]. Endoscopy, 2009, 41(9):746-750. | 
				                                                        
				                                                            
				                                                                | 32. | Watanabe T, Kume K, Taip M, et al. Gastric mucosal cancer smaller than 7 mm can be treated with conventional endoscopic mucosal resection as effectively as with endoscopic submucosal dissection[J]. Hepatogastroenterology, 2010, 57(99-100):668-673. |