求文献一篇,5 r. C, R4 ]: S
Systematic review of Chinese studies of short-term exposure to air pollution and daily mortality& C) P# O) m3 p% A0 d2 z, Y9 p6 V
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ELsevier 数据库) o( a0 V- s+ L7 H- V$ I
" d2 J4 G/ j2 M. |* ?地址 http://www.ncbi.nlm.nih.gov/pubmed/23434817 ; s5 H6 m& b- h8 ~8 x. G, J7 _4 T3 l \8 L* s1 w: l, ?7 w, A
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