@article{article, title = {{Images in cardiology. The "butterfly" sign of the undilatable lesion.}}, url = {{}}, year = {{2006}}, month = {{3}}, author = {{Raina T and Gunn J}}, doi = {{10.1136/hrt.2005.071621}}, volume = {{92}}, journal = {{Heart}}, issue = {{3}}, pages = {{404}}, note = {{Accessed on 2025/01/13}}}