2Ajani JA, Bekaii-Saab T, Yang G, et al. NCCN clinical practice guidelines in oneology:gastrie cancer. 2009. http:// www.neen.org/professionals/physieian_gls/PDF/gastric.pdf.
3Levin B, Lieberman DA, McFarland B, et al. American Cancer Society Colorectal Cancer Advisory Group; US Multi- Society Task Force; American College of Radiology Colon Cancer Committee. Screening and surveillance for the early detection of coloreetal cancer and adenomatons polyps, 2008: a joint guideline from the American Cancer Society, the US Multi-Society Task Force on Colorectal Cancer, and the American College of Radiology. Gastroenterology, 2008, 134 (5) : 1570-1595.
4Karam SM. Cellular origin of gastric cancer. Ann N Y Acad Sci, 2008, 1138: 162-168.
5Hamashima C, Shibuya D, Yamazaki H, et al. The Japanese guidelines for gastric cancer screening. Jpn J Clin Oncol, 2008, 38(4) :259-267.
6Sung NY, Park EC, Shin HR, et al. Participation rate and related socio-demographic factors in the national cancer screening program. J Prev Med Public Health, 2005, 38( 1 ) :93-100.
7Leung WK, Wu MS, Kakugawa Y, et al. Asia Pacific Working Group on Gastric Cancer. Screening for gastric cancer in Asia: current evidence and practice. Lancet Oncol, 2008, 9(3):279- 287.
8Habermann CR, Weiss F, Riecken R, et al. Preoperative staging of gastric adenocarcinoma: comparison of helical CT and endoscopic US. Radiology, 2004, 230(2):465-471.
9Lira JS, Yun MJ, Kim M J, et al. CT and PET in stomach cancer: preoperative staging and monitoring of response to therapy. Radiographics, 2006, 26( 1 ) : 143-156.
10Chen J, Cheong JH, Yun M J, et al. Improvement in preoperative staging of gastric adenocarcinoma with positron emission tomography. Cancer, 2005, 103 ( 11 ) : 2383-2390.