Effects of Ovariectomy and 17β-Estradiol on Bone GLA Protein in Growing Rats: An Indirect Evidence for Estrogen Receptors in Bone Cells - Fiore, C. E.; Clementi, G.; Foti, R.; Prato, Agata; Grimaldi, D. R. (Experimental and Clinical Endocrinology & Diabetes, 1988)