1. Prolonged QT Syndrome: Perioperative Management
ROBERT A. STRICKLAND, M.D., MARSHALL S. STANTON, M.D., KERRY D. OLSEN, M.D. 
Mayo Clinic Proceedings 
Volume 68, Issue 10, Pages (October 1993)
DOI: /S (12)
Copyright © 1993 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Fig. 1
Electrocardiogram of 26-year-old woman with prolonged QT syndrome obtained 2 days postoperatively, demonstrating corrected QT interval of 499 ms and notching of T wave.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1993 Mayo Foundation for Medical Education and Research Terms and Conditions