Figure 10From: Biphasic effect of extracellular ATP on human and rat airways is due to multiple P2 purinoceptor activationEffect of successive ATP stimulation in rat isolated airway rings. Fmax in response to 4 successive stimulations by 10-3 M ATP at 15 min-intervals of rat trachea (A, n = 8) left EPB (B, n = 8), and left IPB (C, n = 8). Error bars are SEM.Back to article page