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Liu JM, Yang Q, Pirrallo RG, Klein JP, Aufderheide TP.Liu JM, et al. Among authors: pirrallo rg.Prehosp Emerg Care. 2008 Jul-Sep;12(3):339-46. doi: 10.1080/10903120802101330.Prehosp Emerg Care. 2008.PMID: 18584502