1. Plants.;Shih,1998
2. Herbal preparations.;Hung,1998
3. Muscarinic receptor agonists and antagonists.;Brown,2001
4. Muscarinic receptors—characterization, coupling, and function;Caulfield;Pharmacol Ther,1993
5. Modulation of synaptic transmission: second messengers.;Siegelbaum,2000