@misc{indiciae9f874799a943, title = {[Electrocardiographic changes during anesthesia and mitral surgery].}, author = {J A Pedrote Guinea and J M GutiƩrrez Giocoechea}, year = {1965}, url = {https://pubmed.ncbi.nlm.nih.gov/5834374/}, note = {Source identifier: 5834374} }