Intra‐Aortic Balloon Pump for Left Ventricular Unloading in Veno‐Arterial Extracorporeal Membrane Oxygenation: The Last Remaining Indication in Cardiogenic Shock - Agam Bansal; Dhiran Verghese; Saraschandra Vallabhajosyula (Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022)