Valsalva maneuver
【待翻译】val-SAL-vah
释义:Bearing down, as in childbirth or defecation, by attempting to exhale forcefully with the nose and throat closed; this action has an effect on the cardiovascular system
Valsalva maneuver
【待翻译】释义:Bearing down, as in childbirth or defecation, by attempting to exhale forcefully with the nose and throat closed; this action has an effect on the cardiovascular system