1. Sex hormones and age;Ferrini;A cross-sectional study of testosterone and estradiol and their bioavailable fractions in community-dwelling men,1998
2. An examination of research design effects on the association of testosterone and aging;Gray;Results of a meta-analysis,1991
3. Effects of testosterone replacement therapy in old hypogonadal males;Morley;A preliminary study,1993
4. Effects of testosterone supplementation in the aging male;Tenover;J Clin Endocrinol Metab,1992
5. Testosterone, sex hormone-binding globulin, and frailty in older men;Mohr;J Am Geriatr Soc,2007