Affiliation: | 1. Department of Hematology, Hokkaido University Graduate School of Medicine, Kita 15 Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan 2. Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Kita 15 Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan 3. Center for Hematology and Regenerative Medicine, Department of Medicine, Karolinska University Hospital, Stockholm, Sweden
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