2311162 mAChR muscarinic acetylcholine receptor 814 1945780 mAChRs muscarinic acetylcholine receptors 501 285538 MR muscarinic acetylcholine receptor 6 1948817 mAcChR muscarinic acetylcholine receptor 6 1280070 MRs muscarinic acetylcholine receptors 5 3006378 mACh muscarinic acetylcholine receptors 3 1215201 MAR muscarinic acetylcholine receptors 2 2541028 mAcChoR muscarinic acetylcholine receptors 2 2932023 muscarinic AChR muscarinic acetylcholine receptors 2 3020706 M-ChR muscarinic acetylcholine receptors 1 2472505 MChRs muscarinic acetylcholine receptors 1 1945776 mAChR-A muscarinic acetylcholine receptors 1 2804689 muscarinic receptors muscarinic acetylcholine receptors 1