title: Angiographic demonstration of important anatomic variations of the posterior descending coronary artery.
mesh_terms: D017023:Coronary Angiography; D003326:Coronary Circulation; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging*; D003331:Coronary Vessels / Q000033:anatomy & histology*; D006346:Heart Septum / Q000098:blood supply; D006352:Heart Ventricles / Q000098:blood supply; D006801:Humans