Diagnosing Syncope, Part 2:Unexplained Syncope
Ann Int Med 127:76-86, Linzer,M.,et al, 1997
Syncope:1991
Am J Med 90:1-5, Linzer,M., 1991
Intracardiac Electrophysiologic Techniques in Recurrent Syncope of Unknown Cause
Ann Int Med 95:542-548, DiMarco,J.P.,et al, 1981