title: Letter: LCA ligation effectiveness questioned.
mesh_terms: D002675:Child, Preschool; D003330:Coronary Vessel Anomalies / Q000601:surgery*; D003331:Coronary Vessels / Q000601:surgery*; D006801:Humans; D007231:Infant, Newborn; D008026:Ligation; D013348:Subclavian Artery / Q000601:surgery