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Original traces showing the effect of (a) pyridoxalphosphate-6-azophenyl-2′,5′-disulphonic acid (PPADS; 100 μM), (b) apamin (1 μM) and (c) desensitization to α,β-methylene adenosine 5′-triphosphate (α,β-methylene ATP; ♦; 10 μM, three additions) on responses to non-adrenergic, non-cholinergic electrical field stimulation (EFS; •; 0.5–4 Hz) in longitudinal strips of rat gastric fundus.
