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  1. Rectal Cancer Treatment (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK65965
    ... PubMed : 17174516 ] Cellular Classification and Pathology of Rectal ... carcinoma. Undifferentiated carcinoma. Carcinoid (well-differentiated ...
  2. Detailed Methods - Screening for Lung Cancer: Systematic Review to Update the U.S. Preventive Services Task Force ... 
    https://www.ncbi.nlm.nih.gov/books/NBK154613
    ... Schoen RE, Pinsky PF, Weissfeld JL, et al. Colorectal-cancer incidence and mortality with ... as a screening tool for colon cancer, lung cancer and coronary artery disease. Eur. ...