Gastroenterology
Volume 135, Issue 3 , Page 723 , September 2008

Balfour of the Balfour retractor

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    Donald Church Balfour, MD

    Photograph courtesy of Mayo Clinic Photographic Department

    Donald Church Balfour, MD

    Photograph courtesy of Mayo Clinic Photographic Department

PII: S0016-5085(08)01452-2

doi: 10.1053/j.gastro.2008.07.077

Gastroenterology
Volume 135, Issue 3 , Page 723 , September 2008

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