Inability of parallel bio-assay to recognize acetylcholine in mixtures of substances with acetylcholine-like activity.
D000109:Acetylcholine / Q000494:pharmacology*; D000818:Animals; D001001:Anura; D001681:Biological Assay; D001794:Blood Pressure / Q000187:drug effects; D002415:Cats; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007865:Leeches; D009130:Muscle, Smooth / Q000187:drug effects; D009132:Muscles / Q000187:drug effects
D000109:Acetylcholine