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Showing articles 0 to 2 of 2 Filter Applied: heart block,complete (Click to remove) Lyme Disease NEJM 321:586-596, Steere,A.C., 1989 Systemic Embolism In Chronic Sinoatrial Disorder NEJM 295:190, Fairfax,A.J.,et al, 1976 Showing articles 0 to 2 of 2