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Effect of [Ca2+]i in lacrimal gland acini. Time-dependent increase in [Ca2+]i induced by stimulation of lacrimal gland acini with increasing concentrations of the cholinergic agonist carbachol (Cch) added after 10 seconds of incubation. Trace is the mean from four experiments (A). Mean change in peak [Ca2+]i from four experiments (B). Values are mean ± SEM. Arrow: time of carbachol addition. *Significant difference from no additions (0).
