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OBJECTIVE The effects of Yigu Capsule on NO and NOS of osteoblasts were studied. METHODS (1) Forty 12-month old Sprague-daweley female rats were divided into randomly four groups (Yigu Capsule high dose group, medium dose group and low dose group; saline group), the drug-containing serum and control serum were prepared. (2) The new-born Sprague-daweley(More)