2Ciemniewski Z, Myszor J, Giec L. Sick sinus syndrome during long term observation. Pol Arch Med Wewn,1995,93(1):48-57.
3Kapoor W, Cha R, Peterson J. Prolonged electrocardiographic monitoring in patients with syncope. Am J Med, 1987,82:20-28.
4Brignole M, Menozzi C, Bottoni N. Mechanisms of syncope caused by transient bradycardia and the diagnostic value of electrophysiologic testing and cardiovascular reflexivity maneuvers. Am J Cardiol, 1995,76(4):273-278.