title: The half-axial projection. A new look at the proximal left coronary artery.
mesh_terms: D000792:Angiography; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging; D006801:Humans; D008722:Methods