Lasik is best for moderate, not severe, vision problems.
镭射视力矫正手术对中等而不严重的视力问题最有效。
Of these, 12per cent were suffering moderate to severe depression.
在这些人中，有12%的人正经历中度至重度的忧郁症。
Objective To observe the function of mechanical ventilation in moderate, severe asthma.
目的观察机械通气在中、重度哮喘发作中的作用。
Of moderate to severe pain, effective, and less respiratory depression.
对中、重度疼痛有效，对呼吸抑制作用较轻。
Objective to study the effect of the multimodality treatment of moderate to severe knee osteoarthritis.
目的探讨综合治疗膝关节中重度骨性关节炎的疗效。
Objective to study the effect of the multimodality treatment of moderate to severe knee osteoarthritis.
目的探讨综合治疗膝关节中重度骨性关节炎的疗效。
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