- Callahan, Thomas D.,
Callahan, Thomas D., IV (Personal Name)
Manual of cardiovascular medicine, c2013: t.p. (Thomas D. Callahan, IV; MD, FACC, FHRS; Associate Director, Cardiology Fellowship, Cleveland Clinic)
Cleveland Clinic WWW site, viewed February 25, 2013 find a doctor page (Thomas Callahan, IV; physician in the Section of Pacing and Electrophysiology of the Sydell and Arnold Miller Family Heart & Vascular Institute at Cleveland Clinic; came to Cleveland Clinic in 2003 as a Fellow in Cardiovascular Medicine and subsequently completed a Fellowship in Cardiac Electrophysiology and Pacing; prior to that he was resident and then chief resident in Internal Medicine at the Hospital of the University of Pennsylvania [Philadelphia]; graduate of Oberlin College, Ohio; Master's Degree from the University of Michigan; medical degree from Eastern Virginia Medical School, Norfolk, VA; member of the Heart Rhythm Society, American College of Cardiology and American Medical Association)