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Portal venograms made by injecting 50 or 70 per cent diodone into the spleens of nine dogs and 15 patients were studied for evidence of streamlining in the portal vein. 2. Separate streams were visible in only one patient and two dogs. 3. The probable factors concerned in the production of streamlining in the portal vein are discussed.
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A 1954 study studied this question.
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