title: Heterogeneity of 125I-labeled tetanus toxin in isoelectric focusing on polyacrylamide gel and polyacrylamide gel electrophoresis.
mesh_terms: D001681:Biological Assay; D004591:Electrophoresis, Polyacrylamide Gel; D007457:Iodine Radioisotopes; D007525:Isoelectric Focusing; D007553:Isotope Labeling; D008970:Molecular Weight; D013744:Tetanus Toxin / Q000302:isolation & purification
chemical_list: D007457:Iodine Radioisotopes; D013744:Tetanus Toxin