@misc{indiciae13d1f1a7c1f5, title = {Hydatid cyst of interventricular septum causing left anterior hemiblock.}, author = {E De los Arcos and M P Madurga and J Perez Leon and J L Martinez and M Urquia}, year = {1971}, doi = {10.1136/hrt.33.4.623}, url = {https://pubmed.ncbi.nlm.nih.gov/5557504/}, note = {Source identifier: 5557504} }