Carotid sinus massage.
D000368:Aged; D002340:Carotid Artery Diseases / Q000150:complications / Q000175:diagnosis*; D002346:Carotid Sinus / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008405:Massage / Q000379:methods*; D013575:Syncope / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology