| Lumbar vertebral density and mechanial properties in agedovariectomized rats treated with estrogen and norethindrone or norgestimate |
Vanin, C.M.;MacLusky, N.J.;Chachra, D.;Kasra, M.;Grynpas, M.D.;Casper, R.F.; |
American Journal of Obstetrics and Gynecology |
1995-11-01 |
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