title: A comment on models of ion transport across cell membranes.
mesh_terms: D001692:Biological Transport; D002352:Carrier Proteins / Q000502:physiology; D002462:Cell Membrane / Q000378:metabolism*; D004563:Electrochemistry; D007477:Ions; D008954:Models, Biological
chemical_list: D002352:Carrier Proteins; D007477:Ions