1. Division of Cardiology, Department of Internal Medicine, Texas Tech University Health Sciences Center, 4800 Alberta Avenue, El Paso, TX 79905, USA
2. Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, 5001 El Paso Drive, El Paso, TX 79905, USA
3. Department of Internal Medicine, Texas Tech University Health Sciences Center, 4800 Alberta Avenue, El Paso, TX 79905, USA
4. Tash Medical Clinic, 7812 Gateway Blvd E, El Paso, TX 79915, USA
5. Center of the Heart, 361 Vinton Rd, Vinton, TX 79821, USA