title: Identification and quantification of vasoactive intestinal peptide in periradicular lesions.
mesh_terms: D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007457:Iodine Radioisotopes; D009479:Neuropeptides / Q000032:analysis*; D010483:Periapical Diseases / Q000378:metabolism* / Q000473:pathology; D019275:Radiopharmaceuticals; D014660:Vasoactive Intestinal Peptide / Q000032:analysis*
chemical_list: D007457:Iodine Radioisotopes; D009479:Neuropeptides; D019275:Radiopharmaceuticals; D014660:Vasoactive Intestinal Peptide