Testosterone and Growth Hormone Improve Body Composition and Muscle Performance in Older Men

F. R Sattler, C Castaneda Sceppa, E. F Binder, E. T Schroeder, Y Wang, S Bhasin, M Kawakubo, Y Stewart, K. E Yarasheski, J Ulloor, P Colletti, R Roubenoff and S. P. Azen

Journal of Clinical Endocrinology & Metabolism 94 ( 6 ): 1991 - 2001 , 2009