COVID-19, a disease of the nicotinic cholinergic system? Nicotine may be protective
https://www.qeios.com/read/JFLAE3?f...aykblwU7Uw648EIpSXkyTn9SJs1q37qMS1piXovgsXCw8
https://www.qeios.com/read/JFLAE3?f...aykblwU7Uw648EIpSXkyTn9SJs1q37qMS1piXovgsXCw8