@misc{indiciae48cfc34a384f, title = {[Phase 4 alternating left bundle branch block. Considerations on a case report].}, author = {C Greco and A Valente and F Romeo and M C Acconcia and G Ruvolo and P A Gioffrè}, year = {1982}, url = {https://pubmed.ncbi.nlm.nih.gov/6927460/}, note = {Source identifier: 6927460} }