Burden of emergency conditions and emergency care usage: new estimates from 40 countries
Chang, Cindy Y ; Abujaber, Samer ; Reynolds, Teri A ; Camargo, Carlos A ; Obermeyer, Ziad
Emergency medicine journal : EMJ, 2016-11, Vol.33 (11), p.794-800 [Periódico revisado por pares]England: BMJ Publishing Group LTD
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