例句 /

[Objective] To investigate bone mineral density(BMD) of women who had premenopausal hysterectomy and ovariotomy 10 days ago.

[Objective] To investigate bone mineral density(BMD) of women who had premenopausal hysterectomy and ovariotomy 10 days ago.

[目的]研究人工绝经早期对腰椎正位、髋部骨密度的影响。