[1. Abe S, Terai T, Sakamoto N, Beppu K, Nagahara A, Kobayashi O, Ohkusa T, Ogihara T, Hirai S, Kamano T, Miwa H, Sato N. Clinicopathological features of nonpolypoid colorectal tumors as viewed from the patients' background // J Gastroenterol, 2006; 41:325 – 331]Search in Google Scholar
[2. Ahmadi O, Stringer MD, Black MA, McCall JL. Influence of age and site of disease on lymph node yield in colorectal cancer // N Z Med J, 2014; 127: 31 – 40]Search in Google Scholar
[3. Altman DG, Machin D, Bryant TN, Gardner RJ. Statistics with confidence. 2nd ed. Bristol: BMJ Books; 2000]Search in Google Scholar
[4. Arslan NC, Sokmen S, Canda AE, Terzi C, Sarioglu S. The prognostic impact of log odds of positive lymph nodes in colon cancer // Colorectal Dis, 2014; doi: 10.1111/codi.1270210.1111/codi.1270224980876]Search in Google Scholar
[5. Berut M, Mik M, Kedzia-Berut R, Kujawski R, Trzcinski R, Dziki L, Dziki A. Colorectal cancer in young and elderly patients // Polski Przeglad Chirurgiczny, 2013; 8:446 – 451]Search in Google Scholar
[6. Bhangu A, Brown G, Nicholls RJ, Wong J, Darzi A, Tekkis P. Survival outcome of local excision versus radical resection of colon or rectal carcinoma: a Surveillance, Epidemiology, and End Results (SEER) population-based study // Ann Surg, 2013, 258: 563 – 57110.1097/SLA.0b013e3182a4e85a23979270]Search in Google Scholar
[7. Budde CN, Tsikitis VL, Deveney KE, Diggs BS, Lu KC, Herzig DO. Increasing the number of lymph nodes examined after colectomy does not improve colon cancer staging // J Am Coll Surg, 2014; 218:1004 – 1011]Search in Google Scholar
[8. Compton CC, Byrd DR, Garcia-Aguilar J, Kurtzman SH, Olawaiye A, Washington MK. AJCC Cancer Staging Atlas, 2nd ed. NewYork, Springer, 2012; 185 – 20210.1007/978-1-4614-2080-4_14]Search in Google Scholar
[9. Compton CC, Fielding LP, Burgart LJ, Conley B, Cooper HS, Hamilton SR, Hammond ME, Henson DE, Hutter RV, Nagle RB, Nielsen ML, Sargent DJ, Taylor CR, Welton M, Wilett C. Prognostic factors in colorectal cancer. College of American Pathologists consensus statement 1999 // Arch Pathol Lab Med, 2000; 124:979 – 99410.5858/2000-124-0979-PFICC10888773]Search in Google Scholar
[10. Costi R, Beggi F, Reggiani V, Ricco M, Crafa P, Bersanelli M, Tartamella F, Violi V, Roncoroni L, Sarli L. Lymph node ratio improves TNM and Astler-Coller's assessment of colorectal cancer prognosis: an analysis of 761 node positive cases // J Gastrointest Surg, 2014; E-pub ahead of print, accessed 11.08.2014.10.1007/s11605-014-2591-425091835]Search in Google Scholar
[11. Cunliffe WJ, Hasleton PS, Tweedle DE, Schofield PF. Incidence of synchronous and metachronous colorectal carcinoma // Br J Surg, 1984; 71:941 – 943]Search in Google Scholar
[12. Edge SB, Byrd DR, Compton CC, Fritz AG, Greene FL, Trotti A III. AJCC cancer staging manual, 7th ed. New York, Springer, 2010; 173 – 206]Search in Google Scholar
[13. Fleming M, Ravula S, Tatishchev SF, Wang HL. Colorectal carcinoma: Pathologic aspects // J Gastrointest Oncol, 2012; 3: 153 – 173]Search in Google Scholar
[14. Gagliardi G, Newton TR, Bailey HR. Local excision of rectal cancer followed by radical surgery because of poor prognostic features does not compromise the long term oncologic outcome // Colorectal Dis, 2013; 15:659 – 664]Search in Google Scholar
[15. Ghazi S, Lindforss U, Lindberg G, Berg E, Lindblom A, Papadogiannakis N; Low-Risk Colorectal Can-cer Study Group. Analysis of colorectal cancer morphology in relation to sex, age, location, and family history // J Gastroenterol, 2012; 47:619 – 634]Search in Google Scholar
[16. Hamilton SR, Aaltonen LA. World Health Organisation classification of tumours, pathology and genetics of tumors of the digestive system, 4th ed. Lyon, IARC Press, 2010; 103 – 145]Search in Google Scholar
[17. Johnson A, Rees JR, Schwenn M, Riddle B, Verrill C, Celaya MO, Nicolaides DA, Cherala S, Feinberg M, Gray A, Rutstein L, Katz MS, Nunnink JC. Oncology care in rural northern new England // J Oncol Pract, 2010; 6:81 – 89]Search in Google Scholar
[18. Kuijpers CC, van Slooten HJ, Schreurs WH, Moorman GR, Abtahi MA, Slappendel A, Cliteur V, van Diest PJ, Jiwa NM. Better retrieval of lymph nodes in colorectal resection specimens by pathologists' assistants // J Clin Pathol, 2013; 66: 18 – 23]Search in Google Scholar
[19. Li Destri G, Di Carlo I, Scilletta R, Sciletta B, Puleo S. Colorectal cancer and lymph nodes: the obsession with the number 12 // World J Gastroenterol, 2014; 20:1951 – 1960]Search in Google Scholar
[20. Marks JH, Valsdottir EB, Rather AA, Nweze IC, Newman DA, Chernick MR. Fewer than 12 lymph nodes can be expected in a surgical specimen after high-dose chemoradiation therapy for rectal cancer // Dis Colon Rectum, 2010; 53:1023 – 1029]Search in Google Scholar
[21. Marzouk O, Schofield J. Review of histopathological and molecular prognostic features in colorectal cancer // Cancers (Basel), 2011; 3:2767 – 2810]Search in Google Scholar
[22. Mitchell PJ, Ravi S, Grifftiths B, Reid F, Speake D, Midgley C, Mapstone N. Multicentre review of lymph node harvest in colorectal cancer: are we understaging colorectal cancer patients? // Int J Colorectal Dis, 2009; 24:915 – 921]Search in Google Scholar
[23. Morcos B, Baker B, Al Masri M, Haddad H, Hashem S. Lymph node yield in rectal cancer surgery: effect of preoperative chemoradiotherapy // Eur J Surg Oncol, 2010; 36:345 – 349]Search in Google Scholar
[24. Nawa T, Kato J, Kawamoto H, Okada H, Yamamoto H, Kohno H, Endo H, Shiratori Y. Differences in right- and left-sided colon cancer in patient characteristics, cancer morphology and histology // J Gastroenterol Hepatol, 2008; 23:418 – 423]Search in Google Scholar
[25. Ponz de Leon M, Sacchetti C, Sassatelli R, Zanghieri G, Roncucci L, Scalmati A. Evidence for the existence of different types of large bowel tumor: suggestions from the clinical data of a population-based registry // J Surg Oncol, 1990; 44:35 – 43]Search in Google Scholar
[26. Shia J, Wang H, Nash GM, Klimstra DS. Lymph node staging in colorectal cancer: revisiting the benchmark of at least 12 lymph nodes in R0 resection // J Am Coll Surg, 2012; 214:348 – 355]Search in Google Scholar
[27. Stocchi L, Fazio VW, Lavery I, Hammel J. Individual surgeon, pathologist, and other factors affecting lymph node harvest in stage II colon carcinoma. Is a minimum of 12 examined lymph nodes sufficient? // Ann Surg Oncol, 2011; 18:405 – 412]Search in Google Scholar
[28. Swamy R. Histopathological reporting in pT4 tumor stage in colorectal carcinomas: dotting the ‘i's and crossing the ‘t's // J Clin Pathol, 2010; 63:110 – 115]Search in Google Scholar
[29. Takeuchi H, Toda T, Nagasaki S, Kawano T, Mina-misono Y, Maehara Y, Sugimachi K. Synchronous multiple colorectal adenocarcinomas // J Surg On-col, 1997; 64:304 – 307]Search in Google Scholar
[30. Ueno H, Hase K, Hashiguchi Y, Shinto E, Shimazaki H, Yamamoto J, Nakamura T, Sugihara K. Potential causes of stage migration and their prognostic implications in colon cancer: a nationwide survey of specialist institutions in Japan // Jpn J Clin Oncol, 2014; 44:547 – 555]Search in Google Scholar
[31. Umar A, Boland R, Terdiman JP, Syngal S, de la Chapelle A, Ruschoff J, Fishell R, Lindor NM, Burgart LJ, Hamelin R, Hamilton SR, Hiatt RA, Jass J, Lindblom A, Lynch HT, Peltomaki P, Ramsey SD, Rodriguez-Bigas MA, Vasen HFA, Hawk ET, Barrett JC, Freedman AN, Srivastava S. Revised Bethesda guidelines for hereditary nonpolyposis colorectal cancer (Lynch syndrome) and microsatellite instability // J Natl Cancer Inst, 2004; 96:261 – 268]Search in Google Scholar
[32. Vanags A, Strumfa I, Gardovskis A, Borosenko V, Abolins A, Teibe U, Trofimovics E, Miklasevics E, Gardovskis J. Population screening for hereditary and familial cancer syndromes in Valka district of Latvia // Hered Cancer Clin Pract, 2010; 8(1):8, doi: 10.1186/1897-4287-8-810.1186/1897-4287-8-8297813221034437]Search in Google Scholar
[33. Zhang B, Lv M, Chen T, Wei Q, Wang G, Tian J, Chen B. The association between lymph node resection and postoperative survival in patients with colorectal cancer // Hepatogastroenterology 2013; 60:1922 – 1926]Search in Google Scholar
[34. Walsh SV, Carey FA. Malignant epithelial neoplasms of the large bowel // In: Shepherd NA, Warren BF, Williams GT, Greenson JK, Lauwers GY, Novelli MR. Morson and Dawson's gastrointestinal pathology 5th ed. Oxford, Blackwell Publishing, 2013; 685 – 73210.1002/9781118399668.ch38]Search in Google Scholar