title: What about ventilatory efficiency?
authors.forename: Robert L
authors.initials: RL
authors.lastname: Bard
mesh_terms: D005080:Exercise Test; D006333:Heart Failure / Q000378:metabolism*; D016027:Heart Transplantation; D006801:Humans; D010101:Oxygen Consumption; D012123:Pulmonary Ventilation; D012307:Risk Factors