[Comparative study of atrial pacing and ventricular pacing for the treatment of sick sinus syndrome (author's transl)].
D000328:Adult; D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D006325:Heart Atria; D006352:Heart Ventricles; D006801:Humans; D008875:Middle Aged; D012804:Sick Sinus Syndrome / Q000628:therapy*