in a prospective study , we investigated the effect of oral estrogen replacement using conjugated estrogens ( premarin , 0.625 mg ) or micronized 17 beta-estradiol ( estrace , 1 mg ) versus no estrogen in sequential single-photon bone density measurements over 3-year intervals in 397 postmenopausal women .
C0014938
conjugated estrogens
C0699710
premarin