%0 Generic %T NASA's astronaut health care system result of an independent review : hearing before the Subcommittee on Space and Aeronautics, Committee on Science and Technology, House of Representatives, One Hundred Tenth Congress, first session, September 6, 2007. %U https://ezaccess.libraries.psu.edu/login?url=http://congressional.proquest.com/congcomp/getdoc?HEARING-ID=HRG-2007-TEC-0023