2018-12-202018-12-20Unknownhttps://hdl.handle.net/2152.3/11044Handwritten notes / draft from Dr. Thornton to Dr. Bill Feddersen regarding the contract extension for the treadmill developmentDr. William Thorntonresearchexercisetreadmillcontract extensionhandwritten notesSpace MedicinedevelopmentWhitmore Enterprises