Research Studies Study Tracker Expression levels of brain muscarinic acetylcholine receptor in offspring rats of drinking-water borne fluorosis. Expression levels of brain muscarinic acetylcholine receptor in offspring rats of drinking-water borne fluorosis. January 26, 2020 | Chinese Journal of Endemiology | Dong Y, Wang Y, Wei N, Guan Z. | 34:326-330. Brain Animal Study AbstractNo Abstract