Mayo Clinic
Department of Clinical Electrophysiology, Frankel Cardiovascular Center, University of Michigan, Ann Arbor, Michigan, USA.
Diseases of the Esophagus | April 2, 2013 | Volume: 29 | Issue: 6 | Pages: 686-686
Internal Medicine | February 14, 2013 | Volume: 52 | Issue: 4 | Pages: 519-520