Dr. Ren Zhang is a cardiologist in Abilene, Texas and is affiliated with multiple hospitals in the area, including Hendrick Medical Center and Stephens Memorial Hospital-Breckenridge. He received his medical degree from Peking Union Medical College and has been in practice for more than 20 years.

Professor of Cardiovascular Medicine in University Medical Line, Medicine, Member of Cardiovascular Institute, Medical Director of Cardiovascular Health in Stanford Medicine, Senior Medical Director of International Medical Service in Stanford Medicine.

Xiang Qian, MD, PhD, is a Pain Management Physician and Clinical Associate Professor of Anesthesiology, Perioperative and Pain Medicine at Stanford University. He is also the inaugural Stanford Medicine Endowed Director.<br/> At Stanford, Dr. Qian developed many advanced surgical and interventional technologies for his patients, and he currently leads the CT-guided interventional pain program and is the recipient of Translational and Clinical Innovation Award at Stanford.