Knee and Hip Joint Cartilage Damage from Combined Spaceflight Hazards of Low-Dose Radiation Less than 1 Gy and Prolonged Hindlimb Unloading. - Kwok AT; Moore JE; Rosas S; Kerr BA; Andrews RN; Nguyen CM; Lee J; Furdui CM; Collins BE; Munley MT; Willey JS (Radiation research, 2019)