title: Letter: Spread of drugs in tissue: diffusion or iontophoresis?
mesh_terms: D004058:Diffusion; D004305:Dose-Response Relationship, Drug; D005971:Glutamates / Q000378:metabolism; D007478:Iontophoresis; D007700:Kinetics; D008954:Models, Biological; D004364:Pharmaceutical Preparations / Q000378:metabolism*
chemical_list: D005971:Glutamates; D004364:Pharmaceutical Preparations