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Djandji F, Lamontagne AJ, Blais L, Bacon SL, Ernst P, Grad R, Lavoie KL, McKinney ML, Desplats E, Ducharme FM.Djandji F, et al.NPJ Prim Care Respir Med. 2017 Mar 31;27(1):21. doi: 10.1038/s41533-017-0012-3.NPJ Prim Care Respir Med. 2017.PMID: 28364118Free PMC article.
Ahmed S, Bartlett SJ, Ernst P, Paré G, Kanter M, Perreault R, Grad R, Taylor L, Tamblyn R.Ahmed S, et al.Trials. 2011 Dec 14;12:260. doi: 10.1186/1745-6215-12-260.Trials. 2011.PMID: 22168530Free PMC article.Clinical Trial.