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1دورية
المؤلفون: Medicine, Department of Internal, Gastroenterology, Division of, From the University of Missouri School of Medicine, the University of Missouri Depart, Barthel, J.S., Marshall, J.B., King, P.D., Afridi, S.A., Gibb, L.G., Madsen, R.
المصدر: Gastrointestinal Endoscopy; July 1995, Vol. 42 Issue: 1 p45-50, 6p
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2دورية
المؤلفون: Afridi, S.A., Barthel, J.S., King, P.D., Pineda, J.J., Marshall, J.B.
المصدر: Gastrointestinal Endoscopy; May 1995, Vol. 41 Issue: 5 p485-489, 5p