R. D. SOLOWAY, M.D., B. W. TROTMAN, M.D., AND J. D. OSTROW, M.D.
Gastrointestinal Section, Department of Medicine, Hospital of the University of Pennsylvania, the School of
Medicine of the University of Pennsylvania, and the Veterans Administration Hospital, Philadelphia,
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Source : https://www.gastrojournal.org/article/S0016-5085(77)80323-5/pdf