Radiological signs of ulcerative colitis: assessment of their reliability by means of observer variation studies.
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Barium Sulfate↗
Biomedical subjects
N Geffen
Publications and source records attributed to N Geffen.
Radiological appearances of ulcerative colitis: an evaluation of their clinical significance.
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Barium Sulfate↗
Rumination in man. Report of a case.
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Adolescent↗
Artificial pneumoperitoneum in the diagnosis and treatment of hiatus hernia.
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Adolescent↗
Drip infusion cholangiography.
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Bilirubin↗