3Tan Y M,Rosmawati M,Ranjeev P,et al.Predictive factors by multivariate analysis colorectal cancer in Malaysian patients undergoing colonoscopy[J].J Gastroenterol Hepatol,2002,97:590-593.
4Coban E,Timuragaoglu A,Merie M.Iron deficiency anemia in the elderly:prevalence and endoscopic evaluation of the gastrointestinal tract in out patients[J].Acta Haematol,2003,10(1):25-28.
