Beck's Triad: What Is It, Associated Conditions, and More | Osmosis
Beck's Quadrad? A Rare Case of Pericardial Tamponade Presenting as Transient Pre-Excitation Early after Cardiac Transplantation - The Journal of Heart and Lung Transplantation
File:Cardiac tamponade.webm - Wikimedia Commons
Pericardial Effusion: Symptoms, Causes and Treatment