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  • Correspondence June 2019

    Mark Nelson, M.D., M.Ed.; John F. Butterworth, IV, M.D.

    Anesthesiology. 2019; 130(6):1093-1094. doi: 10.1097/ALN.0000000000002724

  • Correspondence September 2015

    Alexander D. Colquhoun, M.B.Ch.B., F.R.C.A.; Wilhelm Zuelzer, M.D.; John F. Butterworth, IV, M.D.

    Anesthesiology. 2015; 123(3):730-730. doi: 10.1097/ALN.0000000000000785