Significance of abnormal phase II response to Valsalva maneuver in cardiac patients.
D019069:Cell Respiration; D006333:Heart Failure / Q000175:diagnosis*; D006801:Humans; D012119:Respiration / Q000502:physiology*; D014636:Valsalva Maneuver
CONGESTIVE HEART FAILURE/diagnosis; RESPIRATION/physiology