Letter: Kussmaul's sign.
D002305:Cardiac Tamponade / Q000503:physiopathology; D006338:Heart Neoplasms / Q000503:physiopathology*; D006801:Humans; D007601:Jugular Veins / Q000503:physiopathology*; D010494:Pericarditis, Constrictive / Q000503:physiopathology*; D010496:Pericardium; D012119:Respiration