title: Invited commentary.
authors.affiliation: Division of Cardiac Surgery, Johns Hopkins Medical Institutions, Division of Cardiac Surgery, 1800 Orleans St, Zayed 7107, Baltimore, MD21287. Electronic address: jconte@jhmi.edu.
authors.forename: John V
authors.initials: JV
authors.lastname: Conte
mesh_terms: D002303:Cardiac Output, Low / Q000209:etiology*; D001026:Coronary Artery Bypass / Q000401:mortality*; D005260:Female; D006801:Humans; D008297:Male; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D014284:Triiodothyronine