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A–F, Changes in action potentials recorded at 1 Hz in the absence and presence of ATX-II alone and then ATX-II + A-803467 in a mouse myocyte. G and H, ATX-II induced long-lasting early afterdepolarizations (EADs) at 0.5 Hz in a rabbit myocyte. I, pretreatment of a rabbit myocyte with A-803467 eliminated ATX-II induced EADs. Two action potential traces indicated by arrows are for comparison.
