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Torkel B. Brismar; Nikolaos Kartalis; Christian Kylander; Nils Albiin. (2012). MRI of colorectal cancer liver metastases: comparison of orally administered manganese with intravenously administered gadobenate dimeglumine. , 22(3), 633–641. doi:10.1007/s00330-011-2288-y 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research