Objective to investigate early clinical manifestations of osteogenic sarcoma to help establishment of an early diagnosis of the disease.
目的试图找出成骨肉瘤早期临床表现的特点和规律，为其早期诊断提供帮助。
Objective To study the effect of tretinoin on cellular proliferation and differentiation with human osteogenic sarcoma cell.
目的探讨维甲酸对人骨肉瘤细胞抑制增殖和诱导分化的影响。
Li: My diagnosis is that you have a malignant tumor osteogenic sarcoma.
李：我的诊断是您患了恶性骨原性肉瘤。
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