Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
EKG traces of mutation carriers showing leads V1, V2, and V5. (a) QT interval prolongation (patient IV-13 of the pedigree shown in Figure 1). (b) ST segment elevation (patient IV-5 of the pedigree). (c) ST segment elevation and right bundle branch block (patient IV-3 of the pedigree). (d) First-degree AV block and sinus arrest (patient III-14 of the pedigree).
