title: Gas chromatographic determination of methylcholine chloride in pharmaceutical preparations.
mesh_terms: D002794:Choline / Q000031:analogs & derivatives* / Q000032:analysis; D002849:Chromatography, Gas / Q000379:methods; D004304:Dosage Forms / Q000032:analysis; D004355:Drug Stability; D013058:Mass Spectrometry / Q000379:methods
chemical_list: D004304:Dosage Forms; C017506:methylcholine; D002794:Choline