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Murphy VE, Jensen ME, Gibson PG.Murphy VE, et al. Among authors: gibson pg.Semin Respir Crit Care Med. 2017 Apr;38(2):160-173. doi: 10.1055/s-0037-1600906. Epub 2017 May 22.Semin Respir Crit Care Med. 2017.PMID: 28561247Review.
Murphy VE, Gibson PG.Murphy VE, et al. Among authors: gibson pg.Clin Chest Med. 2011 Mar;32(1):93-110. doi: 10.1016/j.ccm.2010.10.001. Epub 2010 Dec 17.Clin Chest Med. 2011.PMID: 21277452Review.