Electrocardiogram of the month. Sino-atrial block.
D001557:Benzenesulfonates; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis*; D006801:Humans
D001557:Benzenesulfonates; C057121:isononanoyl oxybenzene sulfonate
ELECTROCARDIOGRAPHY; HEART BLOCK/diagnosis