Ganslen, Richard V.Morehouse, Laurence E.2018-01-172018-01-171963-04-29MS120-5-15http://hdl.handle.net/2152.3/4616Presented at the American Rocket Society and Aerospace Medical Association Meeting in Los AngelesSpace MedicinePresentationSome Biophysical Problems Associated with Fitness Maintenance in Prolonged Space Flight