title: Comparative sizes of type A and B botulinum neurotoxins.
mesh_terms: D001905:Botulinum Toxins; D055598:Chemical Phenomena; D002621:Chemistry; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D003720:Densitometry; D004591:Electrophoresis, Polyacrylamide Gel; D008970:Molecular Weight
chemical_list: D001905:Botulinum Toxins