3Vermeulen A, Verdonck L,Kaufman JM. A critical evaluation of simple methods for the estimation of free testosterone in sertm.J Clin Endocrinol Metab 1999;84:3666- 3672.
6Eillis WJ, Grayhack JT. Sexua function maging mart alter orchiectomyand estrogen therapy[ J]. J Urol’ 1963,89 :895 -897.
7Granata AR, Rochira V. Relationship between sleep-related erections andtestosterone levels in men[ J]. J Androl, 1997,18(5) :522 -527.
8Bhasin S, Woodhouse L. Testosterone dose-response relationships inhealthy youngmen[ J]. Am J Physiol Endocrinol Metba,2001,281 (6):E1172 -U81.
9Schiavi RC,Rehman J. Sexuality and aging[ J]. Urol Clin North Am,1995,22(4):711 -726.
10Gray PB, Singh AB. Dose-dependent effects of testosterone on sexualfunction,mood,and visuospatial cognation in older men[ J]. T Clin En-docrinol Metab ,2005,90(7) :3838 -3846.
