title: [Facing the chances and setbacks].
authors.forename: B Y
authors.initials: BY
authors.lastname: Qin
mesh_terms: D002681:China; D002800:Cholinesterase Inhibitors / Q000266:history; D005048:Etorphine / Q000031:analogs & derivatives / Q000266:history; D049673:History, 20th Century; D014116:Toxicology / Q000266:history*
chemical_list: D002800:Cholinesterase Inhibitors; D005048:Etorphine