Fig. 1From: Safety and efficacy of reduced dosage ketoprofen with or without tramadol for long-term treatment of osteoarthritis in dogs: a randomized clinical trialPlatelet aggregation time (in seconds) of healthy dogs (group A) and those with osteoarthritis (groups B and C). Evaluations were performed at baseline (D0) and after 7, 28 and 60 days of treatment over 28 days with standard dosage ketoprofen (Group A, n = 5), or reduced dosage ketoprofen alone (Group B, n = 10) or with tramadol (Group C, n = 10). Data are presented as mean. Error bars represent standard deviation. *Indicates significant within-time difference when compared with baseline (day 0) and day 60Back to article page