Vogel, John M.D.Friedman, Ronald M.D.2018-04-032018-04-03Unknownhttp://hdl.handle.net/2152.3/7533A document titled Photon Absorptiometry Measurements of Bone Mineral in Apollo 14 abd 15.Photon Absorptiometry Measurements of Bone MineralApollo 14Apollo 15astronaut healthDr. Charles BerrySpace Medicine