1. Moertel CG, Dockerty MB, Baggenstoss AH. Multiple primary malignant neoplasms: I. Introduction and presentation of data. Cancer 1961;14:221–230. PMID:
13771652.
2. Okamoto N, Morio S, Inoue R, Akiyama K. The risk of a second primary cancer occurring in five-year survivors of an initial cancer. Jpn J Clin Oncol 1987;17:205–213. PMID:
3669364.
3. Park EK, Kwon JH, Lee JH, Lee SJ. Clinical study of multiple primary malignant tumor. Korean J Med 2005;69:410–418.
4. Kim CK. Multiple primary malignant tumors. Korean J Intern Med 1975;17:45–50. PMID:
12014212.
5. Hur YH, Ryu SY, Kim DY, Kim YJ, Kim SK. Study of combined multiple primary cancer in gastric cancer patients. J Korean Surg Soc 2003;64:296–301.
6. National Cancer Center, Ministry of Health and Welfare. Annual report of the Korea Central Cancer Registry 2007. 2008.Goyang: National Cancer Center.
7. Jung SY. Screening guidelines for the early detection of colorectal cancer: panel discussion. Korean J Gastrointest Endosc 2002;24:317–320.
8. Evans HS, Moller H, Robinson D, Lewis CM, Bell CM, Hodgson SV. The risk of subsequent primary cancers after colorectal cancer in southeast England. Gut 2002;50:647–652. PMID:
11950810.
10. Buiatti E, Crocetti E, Acciai S, Gafa L, Falcini F, Milandri C, et al. Incidence of second primary cancers in three Italian population-based cancer registries. Eur J Cancer 1997;33:1829–1834. PMID:
9470841.
11. Park DI, Park SH, Yoo TW, Kim HS, Yang SK, Byeon JS, et al. The prevalence of colorectal neoplasia in patients with gastric cancer: a Korean Association for the Study of Intestinal Disease (KASID) Study. J Clin Gastroenterol 2010;44:102–105. PMID:
19561531.
12. Oh SY, Park DI, Yoo TW, Kang MS, Kim SH, Park JH, et al. Is gastric cancer a new indication for surveillance colonoscopy? Colon cancer is increased in gastric cancer patients. Korean J Gastroenterol 2006;47:191–197. PMID:
16554672.
13. Watanabe S, Kodama T, Shimosato Y, Arimoto H, Suemasu K. Second primary cancers in patients with gastrointestinal cancers. Jpn J Clin Oncol 1985;15(Suppl 1): 171–182. PMID:
4009980.
14. Greene FL. American Joint Committee on Cancer. American Cancer Society. AJCC cancer staging manual. 2002.6th ed. New York: Springer-Verlag.
15. Engeland A, Bjorge T, Haldorsen T, Tretli S. Use of multiple primary cancers to indicate associations between smoking and cancer incidence: an analysis of 500,000 cancer cases diagnosed in Norway during 1953-93. Int J Cancer 1997;70:401–407. PMID:
9033646.
16. Uchino S, Tsuda H, Noguchi M, Yokota J, Terada M, Saito T, et al. Frequent loss of heterozygosity at the DCC locus in gastric cancer. Cancer Res 1992;52:3099–3102. PMID:
1591722.
17. Vogelstein B, Fearon ER, Hamilton SR, Kern SE, Preisinger AC, Leppert M, et al. Genetic alterations during colorectal-tumor development. N Engl J Med 1988;319:525–532. PMID:
2841597.
18. Ohtani H, Yashiro M, Onoda N, Nishioka N, Kato Y, Yamamoto S, et al. Synchronous multiple primary gastrointestinal cancer exhibits frequent microsatellite instability. Int J Cancer 2000;86:678–683. PMID:
10797290.
19. Chung DC, Rustgi AK. DNA mismatch repair and cancer. Gastroenterology 1995;109:1685–1699. PMID:
7557155.
20. Schulmann K, Reiser M, Schmiegel W. Colonic cancer and polyps. Best Pract Res Clin Gastroenterol 2002;16:91–114. PMID:
11977931.
21. Cannon-Albright LA, Skolnick MH, Bishop DT, Lee RG, Burt RW. Common inheritance of susceptibility to colonic adenomatous polyps and associated colorectal cancers. N Engl J Med 1988;319:533–537. PMID:
2841598.
22. Grady WM. Genetic testing for high-risk colon cancer patients. Gastroenterology 2003;124:1574–1594. PMID:
12761718.
23. Calle EE, Thun MJ. Obesity and cancer. Oncogene 2004;23:6365–6378. PMID:
15322511.
24. Chung YW, Han DS, Park YK, Son BK, Paik CH, Lee HL, et al. Association of obesity, serum glucose and lipids with the risk of advanced colorectal adenoma and cancer: a case-control study in Korea. Dig Liver Dis 2006;38:668–672. PMID:
16790371.
25. Shin SK, Li MS, Fuerst F, Hotchkiss E, Meyer R, Kim IT, et al. Oncogenic T-antigen of JC virus is present frequently in human gastric cancers. Cancer 2006;107:481–488. PMID:
16795066.
26. Jung WT, Li MS, Goel A, Boland CR. JC virus T-antigen expression in sporadic adenomatous polyps of the colon. Cancer 2008;112:1028–1036. PMID:
18205186.
27. Goel A, Li MS, Nagasaka T, Shin SK, Fuerst F, Ricciardiello L, et al. Association of JC virus T-antigen expression with the methylator phenotype in sporadic colorectal cancers. Gastroenterology 2006;130:1950–1961. PMID:
16762618.
28. Diergaarde B, Vrieling A, van Kraats AA, van Muijen GN, Kok FJ, Kampman E. Cigarette smoking and genetic alterations in sporadic colon carcinomas. Carcinogenesis 2003;24:565–571. PMID:
12663519.
29. Miyaki M, Iijima T, Ishii R, Kita Y, Koike M, Kuroki T, et al. Increased frequency of
p53 mutation in sporadic colorectal cancer from cigarette smokers. Jpn J Clin Oncol 2002;32:196–201. PMID:
12110635.
30. Schoen RE, Tangen CM, Kuller LH, Burke GL, Cushman M, Tracy RP, et al. Increased blood glucose and insulin, body size, and incident colorectal cancer. J Natl Cancer Inst 1999;91:1147–1154. PMID:
10393723.
31. Chung SJ, Kim YS, Yang SY, Song JH, Park MJ, Kim JS, et al. Prevalence and risk of colorectal adenoma in asymptomatic Koreans aged 40-49 years undergoing screening colonoscopy. J Gastroenterol Hepatol 2010;25:519–525. PMID:
20370730.
32. Park SY, Kim HS, Yoon KW, Cho SB, Lee WS, Park CH, et al. Prevalence of colorectal adenoma is increased in patients with gastric adenoma. Korean J Gastroenterol 2009;54:220–226. PMID:
19844141.