Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) LIU CC,Preexisting bone loss associated with ovariectomy in rats is reversed by parathyroid hormone,J Bone Miner Res,,,1991,6,,1071-1080,https://cir.nii.ac.jp/crid/1573105974683202048,