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Start Over Subjects United States ✖Remove constraint Subjects: United States Subjects Military Medicine ✖Remove constraint Subjects: Military Medicine Authors Code, Charles F. (Charles Frederick), 1910-1997, author ✖Remove constraint Authors: Code, Charles F. (Charles Frederick), 1910-1997, author Authors Mayo Aero Medical Unit, author. ✖Remove constraint Authors: Mayo Aero Medical Unit, author. Titles Studies in aviation medicine ✖Remove constraint Titles: Studies in aviation medicine Languages English ✖Remove constraint Languages: English Copyright Public domain ✖Remove constraint Copyright: Public domain

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