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  3. The 20 patients had stem cell injections instead of surgery. The ejection fraction rate of the patients with stem cell injectio

The 20 patients had stem cell injections instead of surgery. The ejection fraction rate of the patients with stem cell injectio

admin2009-06-15  65
问题 The 20 patients had stem cell injections instead of surgery.
The ejection fraction rate of the patients with stem cell injections decreased.
选项 A、Right
B、Wrong
C、Not mentioned
答案B
解析
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