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Irish Journal of Medical Science ( 01971 -) > 2011 > 180 > 1 > 97-101
International Journal of Colorectal Disease > 2009 > 24 > 9 > 1097-1109
Irish Journal of Medical Science ( 01971 -) > 2011 > 180 > 1 > 97-101
International Journal of Colorectal Disease > 2009 > 24 > 9 > 1097-1109