Thornton, William2018-05-032018-05-03Unknownhttp://hdl.handle.net/2152.3/8466A memorandum titled Preflight Concerns about ARC AFT Experiment on STS51-B, intended for Bob Overmeyer.Preflight ConcernsSTS 51-BARC AFT ExperimentDr. William ThorntonSpace MedicineSpace MissionmemorandumBob OvermeyerPreflight Concerns about ARC AFT Experiment on STS51-B