Lt. Gen. Dorothy Hogg, Air Force Surgeon General, cuts the ribbon with Air Force Research Laboratory Commander Maj. Gen. Heather Pringle and 711th Human Performance Wing Acting Director Darrell Phillipson, during a ceremony May 27 signifying the opening of the research altitude chambers in AFRL. (U.S. Air Force photo by Richard Eldridge)

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Photo by: U.S. Air Force photo by Richard Eldridge |  VIRIN: 210527-F-HX758-2010.JPG