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Muller I, Kirby S, Yardley L.Muller I, et al. Among authors: kirby s.Disabil Rehabil. 2015;37(12):1060-5. doi: 10.3109/09638288.2014.955134. Epub 2014 Aug 26.Disabil Rehabil. 2015.PMID: 25156569Clinical Trial.
Arden-Close E, Yardley L, Kirby S, Thomas M, Bruton A.Arden-Close E, et al. Among authors: kirby s.NPJ Prim Care Respir Med. 2017 Oct 5;27(1):56. doi: 10.1038/s41533-017-0055-5.NPJ Prim Care Respir Med. 2017.PMID: 28983084Free PMC article.