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Cruz-Almeida Y, Felix ER, Martinez-Arizala A, Widerström-Noga EG.Cruz-Almeida Y, et al. Among authors: felix er.Pain Med. 2009 Oct;10(7):1246-59. doi: 10.1111/j.1526-4637.2009.00713.x.Pain Med. 2009.PMID: 19818035
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Widerström-Noga EG, Cruz-Almeida Y, Felix ER, Adcock JP.Widerström-Noga EG, et al. Among authors: felix er.J Rehabil Res Dev. 2009;46(1):43-56.J Rehabil Res Dev. 2009.PMID: 19533519Free article.
Cardenas DD, Felix ER.Cardenas DD, et al. Among authors: felix er.PM R. 2009 Dec;1(12):1077-90. doi: 10.1016/j.pmrj.2009.07.002.PM R. 2009.PMID: 19797006Review.
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Cruz-Almeida Y, Felix ER, Martinez-Arizala A, Widerström-Noga EG.Cruz-Almeida Y, et al. Among authors: felix er.J Neurotrauma. 2012 Nov 20;29(17):2706-15. doi: 10.1089/neu.2012.2343. Epub 2012 Aug 27.J Neurotrauma. 2012.PMID: 22845918Free PMC article.
Widerström-Noga E, Pattany PM, Cruz-Almeida Y, Felix ER, Perez S, Cardenas DD, Martinez-Arizala A.Widerström-Noga E, et al. Among authors: felix er.Pain. 2013 Feb;154(2):204-212. doi: 10.1016/j.pain.2012.07.022. Epub 2012 Nov 8.Pain. 2013.PMID: 23141478Free PMC article.