Lancetから二つ
Pulmonary embolism in pregnancy
The Lancet, Early Online Publication, 3 November 2009
doi:10.1016/S0140-6736(09)60996-X
Comparison of routine and on-demand prescription of chest radiographs in mechanically ventilated adults: a multicentre, cluster-randomised, two-period crossover study
The Lancet, Early Online Publication, 5 November 2009
doi:10.1016/S0140-6736(09)61459-8
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