Length of left main coronary artery.
D001021:Aortic Valve / Q000601:surgery; D001158:Arteries / Q000033:anatomy & histology; D001344:Autopsy; D002404:Catheterization; D002932:Cineangiography; D017023:Coronary Angiography; D003331:Coronary Vessels / Q000033:anatomy & histology*; D006352:Heart Ventricles; D006801:Humans; D009929:Organ Size; D010477:Perfusion