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International Committee for Standardization in Haematology., International Committee on Thrombosis and Haemostasis. ICSH/ICTH recommendations for reporting prothrombin time in oral anticoagulant control. Blut 50, 185–187 (1985). https://doi.org/10.1007/BF00320075
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DOI: https://doi.org/10.1007/BF00320075