title: Commentary.
authors.affiliation: NIH, Bethesda, MD. aremaley1@cc.nih.gov.
authors.forename: Alan T
authors.initials: AT
authors.lastname: Remaley
mesh_terms: D019963:Clinical Chemistry Tests / Q000379:methods*; D005260:Female; D006801:Humans; D007010:Hyponatremia / Q000175:diagnosis*; D008105:Liver Cirrhosis, Biliary / Q000175:diagnosis*