The effect of charges on permeabilities of drugs through collagen membranes.
D003094:Collagen; D006863:Hydrogen-Ion Concentration; D007477:Ions; D008567:Membranes, Artificial; D010539:Permeability; D004364:Pharmaceutical Preparations
D007477:Ions; D008567:Membranes, Artificial; D004364:Pharmaceutical Preparations; D003094:Collagen