title: Evidence of a paracellular pathway for ion flow in the kidney proximal tubule. Electromicroscopic demonstration of lanthanum precipitate in the tight junction.
mesh_terms: D000201:Activation Analysis; D000818:Animals; D001692:Biological Transport; D002024:Bufo marinus; D002463:Cell Membrane Permeability; D006652:Histological Techniques; D007477:Ions / Q000502:physiology*; D007684:Kidney Tubules / Q000166:cytology / Q000502:physiology*; D007811:Lanthanum / Q000502:physiology; D008854:Microscopy, Electron; D010477:Perfusion
chemical_list: D007477:Ions; D007811:Lanthanum