1Suyama K,Hayashi N,Shigaki H,et al.Neuroendocrine tumor of the rectum.Am J Surg,2009,198(3):e39-41.
2Saclarides TJ,Szeluga D,Staren ED.Neuroendocrine cancers of the colon and rectum.Restults of a ten-year experience.Dis Colon Rectum,1994,37(7):635-642.