title: Water transport in epithelia: introductory remarks.
mesh_terms: D001692:Biological Transport; D004848:Epithelium / Q000378:metabolism*; D005110:Extracellular Space / Q000378:metabolism; D007477:Ions / Q000378:metabolism; D008954:Models, Biological; D014867:Water / Q000378:metabolism*; D014882:Water-Electrolyte Balance
chemical_list: D007477:Ions; D014867:Water