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Beach C, Croskerry P, Shapiro M; Center for Safety in Emergency Care.Beach C, et al. Among authors: croskerry p.Acad Emerg Med. 2003 Apr;10(4):364-7. doi: 10.1111/j.1553-2712.2003.tb01350.x.Acad Emerg Med. 2003.PMID: 12670851Free article.