根据去年中国研究者发布在医学杂志《柳叶刀》上的文章，死亡率如此之高的原因还有不健全的救援系统，以及差劲的医疗措施。
Death rates remain comparatively high because of inadequate rescue systems and poor treatment, according to a study by Chinese researches published last year in medical journal The Lancet.
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