Fig. 4From: Effects of isoflurane, sevoflurane, propofol and alfaxalone on brain metabolism in dogs assessed by proton magnetic resonance spectroscopy (1H MRS)Plasma concentration of propofol and alfaxalone in mg L− 1 for doses 1, 2 and 3. First and third quartiles are defined by the boxes and the median by the band inside. Minimum and maximum is indicated by the whiskers. * Significant difference to dose 2 and 3 (p < 0.05)Back to article page