title: Country cardiograms case 32: Paroxysmal atrial tachycardia with 2:1 block.
authors.affiliation: drchelm@pris.bc.ca
authors.forename: Charles
authors.initials: C
authors.lastname: Helm
mesh_terms: D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013612:Tachycardia, Ectopic Atrial / Q000175:diagnosis*; D013614:Tachycardia, Paroxysmal / Q000175:diagnosis*