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8Sgarbossa EB,Pinski SL.Trohman RG,et al.Chronic atrial fibrillation and stroke in pacing patients with sick sinus syndrome.Relevance of cli nical characteristics and pacing modalities[J].Circulation,1993.88:1045.
9Rosenquist M,Brandt J,Schuller H,Long term pacing in sinus node disease.Effect of stimulation mode on cardiovascular morbidity and mortality[J].AmHeart J,1988.116:16.
10Santini M,Alexidou G,Ansalone G,et al.Relation of prognosis in sick sinus syndrome to age,conduction defects and mode of permanent cardiac pacing[J].Am J Cardiol,1990.65:729.