title: Determination of free choline in human semen using an isotachophoretic analyser.
mesh_terms: D002794:Choline / Q000032:analysis* / Q000097:blood; D004586:Electrophoresis; D005260:Female; D006801:Humans; D008297:Male; D008895:Milk, Human / Q000032:analysis; D012463:Saliva / Q000032:analysis; D012661:Semen / Q000032:analysis*; D014621:Vagina / Q000032:analysis
chemical_list: D002794:Choline