Fig. 2. Effect of volatile anesthetics on the intracellular Ca²⁺concentration response to electrical stimulation (0.25 Hz, 5 ms) in neonatal versus  adult cardiac myocytes. Myocytes were exposed to 1 or 2 minimum alveolar concentration (MAC) of halothane or sevoflurane. Brackets indicate statistically significant difference in pairwise comparisons (P < 0.05). Values are mean ± SD.