Dr. (Col) Gregory Hsu
Dr. (Col.) Gregory Hsu, right, treats facial injuries on UFC fighters following their bouts in the octagon. Hsu is an ophthalmologist who also serves in the Air Force as the Individual Mobilization Augmentee to the Pacific Air Forces Surgeon General.

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Tags: ufc, IMA , Hsu, pacaf
Photo by: Courtesy photo by Elliot Howard |  VIRIN: 160102-F-ZZ999-0005.JPG