2018-10-042018-10-041988https://hdl.handle.net/2152.3/10300Possibly two slides from a presentation, one slide labeled Space Shuttle with an image of the shuttle, and the other a graph labeled Manifested Flight Rate, from NASA 1988.Dr. William ThorntonSpace MedicineSpace ShuttlemissionsManifested Flight RateNASAslide presentationShuttle 5 Manifested Flight Rate NASA 1988