Fig. 3From: Interaction between warfarin and short-term intravenous amiodarone in intensive care unit patients after cardiac surgeryChanges in a prothrombin time-international normalized ratio (PT-INR) and b PT-INR/daily warfarin dose (PT-INR/dose) before and after surgery in the control (n = 15) and the amiodarone (n = 11) groups. The latter represents maximal value during study period. The bold lines represent the median valuesBack to article page