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Number of cases operated on is important in volume-outcome debate for colorectal cancer

BMJ 1999; 319 doi: (Published 28 August 1999) Cite this as: BMJ 1999;319:576
  1. Frank Kee, chair (
  1. Department of Public Health Medicine, Queen's University of Belfast, Belfast BT12 6BJ

    EDITOR—Comber draws a distinction between hospital based registration systems and a population based registry and raises the possibility that we missed cases of colorectal cancer.1 2

    The leaders of both the Northern Ireland cancer register and the colorectal cancer register have shared their data for several years. Those at the colorectal cancer register are aware that their ascertainment focuses on patients having surgical intervention. As our paper indicated,2 we focused our analysis on patients who had surgical intervention …

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