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Education| January 1977
Intraesophageal Microphone for Phonocardiographic Recording
Alan S. Tonnesen, M.D.;
Joseph C. Gabel, M.D.;
John R. Cooper, M.D.;
Carolyn A. McLeavey, R.N.;
Anesthesiology January 1977, Vol. 46, 70–71.
Alan S. Tonnesen, Joseph C. Gabel, John R. Cooper, Carolyn A. McLeavey, Robert E. Drake; Intraesophageal Microphone for Phonocardiographic Recording. Anesthesiology 1977; 46:70–71 doi: https://doi.org/10.1097/00000542-197701000-00014
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