Paroxysmal atrial tachycardia with A-V block:  report of a case with unusual orthostatic effects.
D006327:Heart Block; D006801:Humans; D008499:Medical Records; D011187:Posture; D013610:Tachycardia; D013614:Tachycardia, Paroxysmal
HEART BLOCK/case reports; POSTURE/effects; TACHYCARDIA, PAROXYSMAL/case reports