to assess the effects of gonadal steroid replacement on bone density in men with osteoporosis due to severe hypogonadism , we measured cortical bone density in the distal radius by 125i photon absorptiometry and trabecular bone density in the lumbar spine by quantitative computed tomography in 21 men with isolated gnrh deficiency while serum testosterone levels were maintained in the normal adult male range for 12-31 months ( mean +/- se , 23.7 +/- 1.1 ) .
C0018067
gonadal
C0020619
hypogonadism