References

“Regional Anesthesia of the Head and Neck.” Roberts and Hedges' Clinical Procedures in Emergency Medicine, by Jerris R. Hedges and James R. Roberts, Elsevier Saunders, 2019, pp. 545–559.

Dillon, Douglas C., and Michael A. Gibbs.. "Local and Regional Anesthesia." Tintinalli’s Emergency Medicine: A Comprehensive Study Guide, 8e Eds. Judith E. Tintinalli, et al. New York, NY: McGraw-Hill, 2016, pp. 238-249.