the pharmacology of the ng108-15 cell muscarinic receptors was compared to that of the m1 receptors of rat cortex labeled using [ 3h ] pirenzepine , the m2 and m3 receptors of rat heart and submaxillary gland , respectively , labeled using [ 3h ] nms and the muscarinic receptors of the pc12 cell line also labeled using [ 3h ] nms .
C0531859
m1 receptors
C0034826
muscarinic