Invited commentary.
Savage
Robert
R
Department of Cardiovascular Anesthesia, Center for Aortic Surgery, The Cleveland Clinic Foundation, Cleveland, OH 44195, USA.
Svensson
Lars G
LG
D002302:Cardiac Output; D006348:Cardiac Surgical Procedures; D015150:Echocardiography, Doppler / Q000379:methods*; D006801:Humans; D016343:Monitoring, Intraoperative / Q000379:methods; D011182:Postoperative Care / Q000379:methods; D015203:Reproducibility of Results