[SYNCOPE AND VALSALVA'S MANEUVER].
D001782:Blood Donors; D001794:Blood Pressure; D001795:Blood Pressure Determination; D006801:Humans; D007022:Hypotension; D007024:Hypotension, Orthostatic; D011652:Pulmonary Circulation; D012129:Respiratory Function Tests; D012769:Shock; D013575:Syncope; D014636:Valsalva Maneuver; D014652:Vascular Diseases
BLOOD DONORS; BLOOD PRESSURE; HYPOTENSION, ORTHOSTATIC; PULMONARY CIRCULATION; RESPIRATORY FUNCTION TESTS; SHOCK; SYNCOPE; VALSALVA'S MANEUVER; VASCULAR DISEASES
SVIMNING OCH VALSALVAS FOERSOEK.