The emphysema response to forced straining (Valsalva's maneuver).
D001794:Blood Pressure; D001795:Blood Pressure Determination; D004646:Emphysema; D006801:Humans; D011656:Pulmonary Emphysema / Q000502:physiology*; D014636:Valsalva Maneuver
BLOOD PRESSURE; EMPHYSEMA, PULMONARY/physiology