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Powell AA, White KM, Partin MR, Halek K, Hysong SJ, Zarling E, Kirsh SR, Bloomfield HE.Powell AA, et al. Among authors: hysong sj.BMJ Qual Saf. 2014 Aug;23(8):651-8. doi: 10.1136/bmjqs-2013-002149. Epub 2014 Feb 12.BMJ Qual Saf. 2014.PMID: 24522176