@misc{indiciaed3a64c21c206, title = {A simple model to teach three basic regional anesthesia principles.}, author = {D J Kopacz}, year = {1995}, doi = {10.1097/00000539-199507000-00033}, url = {https://pubmed.ncbi.nlm.nih.gov/7598248/}, note = {Source identifier: 7598248} }