title: Letter: Na+ transport defect in cystic fibrosis.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D001692:Biological Transport / Q000187:drug effects; D003550:Cystic Fibrosis / Q000201:enzymology / Q000378:metabolism*; D004912:Erythrocytes / Q000378:metabolism; D004976:Ethacrynic Acid / Q000494:pharmacology; D005347:Fibroblasts / Q000378:metabolism; D006801:Humans; D010042:Ouabain; D012964:Sodium / Q000378:metabolism*; D014316:Tritium
chemical_list: D014316:Tritium; D010042:Ouabain; D012964:Sodium; D000251:Adenosine Triphosphatases; D004976:Ethacrynic Acid