2018-12-102018-12-10Unknownhttps://hdl.handle.net/2152.3/10837Correspondence from Dr. William Thornton regarding the Preflight Concerns for ARC-AFTDr. William ThorntonSpace MedicineSpace ShuttlemissionsARC - AFTSTS-51BcorrespondenceSTS-51 Memo Thornton To Obermeyer Preflight Concerns ARC-AFT