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d Contemporary Surgery, marts 1990, s. 45-49; The American Surgeon, juni 1987, s. 350-56; Miami Medicine, januar 1981, s. 25; New York State Journal of Medicine, 15. oktober 1972, s. 2524-27; The Journal of the American Medical Association, 27. november 1981, s. 2471, 2472; Cardiovascular News, februar 1984, s. 5; Circulation, september 1984.