1. From the School of Aerospace Medicine (Z.H., X.Q., Y.H., X.Z., G.L., J.W., J.L., F.G.), Fourth Military Medical University, Xi’an, China
2. Department of Physical Education (J.S.), Fourth Military Medical University, Xi’an, China
3. Department of Health Statistics (J.X.), Fourth Military Medical University, Xi’an, China
4. Department of Biochemistry and Molecular Biology (L.W.), Fourth Military Medical University, Xi’an, China