title: A step forward--but the path is still unclear.
authors: A H
authors: AH
authors: Morris
mesh_terms: D021721:Balloon Occlusion / Q000295:instrumentation*; D001795:Blood Pressure Determination / Q000295:instrumentation*; D003422:Critical Care; D006801:Humans; D011669:Pulmonary Wedge Pressure / Q000502:physiology*; D012128:Respiratory Distress Syndrome / Q000175:diagnosis / Q000503:physiopathology*; D012680:Sensitivity and Specificity; D016277:Ventricular Function, Left / Q000502:physiology*