1. J Bone Miner Res 2013; doi:10.1002/jbmr.2072 (Fig. 1)
Reproduced from J Bone Miner Res 2013; doi: /jbmr.2072 with permission of the American Society of Bone and Mineral Research.

2. J Bone Miner Res 2013; doi:10.1002/jbmr.2072 (Fig. 2)
Reproduced from J Bone Miner Res 2013; doi: /jbmr.2072 with permission of the American Society of Bone and Mineral Research.

3. N Engl J Med 2013;369:1011 (Fig. 1)
From N Engl J Med, Finkelstein JS et al, Gonadal steroids and body composition, strength, and sexual function in men, 369, Copyright © (2013) Massachusetts Medical Society. Reprinted with permission from Massachusetts Medical Society.

4. N Engl J Med 2013;369:1011 (Fig. 2)
From N Engl J Med, Finkelstein JS et al, Gonadal steroids and body composition, strength, and sexual function in men, 369, Copyright © (2013) Massachusetts Medical Society. Reprinted with permission from Massachusetts Medical Society.

5. J Bone Miner Res 2013; doi:10.1002/jbmr.2057 (Fig. 1)
Reproduced from J Bone Miner Res 2013; doi: /jbmr.2057 with permission of the American Society of Bone and Mineral Research.

6. J Bone Miner Res 2013; doi:10.1002/jbmr.2057 (Fig. 2)
Reproduced from J Bone Miner Res 2013; doi: /jbmr.2057 with permission of the American Society of Bone and Mineral Research.

7. Osteoporos Int 2013;24:1513 (Fig. 1)
Reproduced from Osteoporos Int 2013;24: with permission from Springer.

8. Bone 2013;56:191 (Fig. 3)
Reproduced from Bone, 56:191-8, Copyright (2013), with permission from Elsevier.

9. Bone 2013;56:191 (Fig. 6)
Reproduced from Bone, 56:191-8, Copyright (2013), with permission from Elsevier.

10. Bone 2013;57:277 (Fig. 2)
Reproduced from Bone, 57:277-83, Copyright (2013), with permission from Elsevier.

11. Bone 2013;57:277 (Fig. 3)
Reproduced from Bone, 57:277-83, Copyright (2013), with permission from Elsevier.

12. Bone 2013;56:55 (Fig. 2)
Reproduced from Bone, 56:55-60, Copyright (2013), with permission from Elsevier.

13. Bone 2013;56:55 (Fig. 4)
Reproduced from Bone, 56:55-60, Copyright (2013), with permission from Elsevier.

14. Bone 2013;57:269 (Fig. 1)
Reproduced from Bone, 57:269-71, Copyright (2013), with permission from Elsevier.

15. Bone 2013;53:51 (Fig. 2)
Reproduced from Bone, 53:51-8, Copyright (2013), with permission from Elsevier.

16. Bone 2013;53:51 (Fig. 3)
Reproduced from Bone, 53:51-8, Copyright (2013), with permission from Elsevier.

17. Bone 2013;53:160 (Fig. 2)
Reproduced from Bone, 53:160-6, Copyright (2013), with permission from Elsevier.

18. Bone 2013;53:160 (Fig. 3)
Reproduced from Bone, 53:160-6, Copyright (2013), with permission from Elsevier.