title: The biological estimation of free choline in tissues.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000215:Acylation; D000818:Animals; D001681:Biological Assay; D002794:Choline / Q000032:analysis*; D005260:Female; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D008297:Male; D008722:Methods; D011817:Rabbits; D014020:Tissue Extracts / Q000032:analysis
chemical_list: D014020:Tissue Extracts; D002794:Choline; D000109:Acetylcholine