title: 3H-Labelling of substance P by tritium exchange and deshalogenation.
mesh_terms: D000818:Animals; D001681:Biological Assay; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D007553:Isotope Labeling / Q000379:methods; D009119:Muscle Contraction / Q000187:drug effects; D011863:Radioimmunoassay; D013373:Substance P / Q000494:pharmacology; D014316:Tritium
chemical_list: D014316:Tritium; D013373:Substance P