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2. Low density barium and bentonite mixture versus high density barium: a comparative study to optimize negative gastrointestinal contrast agents for MRI. Paley MR, Nicolas AI, Mergo PJ, Torres GM, Burton SS, Ros PR. Magn Reson Imaging; 1997; 15(9):1033-6. PubMed ID: 9364949 [Abstract] [Full Text] [Related]
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