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Catumbela E, Certal V, Freitas A, Costa C, Sarmento A, da Costa Pereira A.Catumbela E, et al. Among authors: certal v.BMC Health Serv Res. 2013 Jun 28;13:236. doi: 10.1186/1472-6963-13-236.BMC Health Serv Res. 2013.PMID: 23809537Free PMC article.Review.
Certal V, Catumbela E, Winck JC, Azevedo I, Teixeira-Pinto A, Costa-Pereira A.Certal V, et al.Laryngoscope. 2012 Sep;122(9):2105-14. doi: 10.1002/lary.23465. Epub 2012 Aug 9.Laryngoscope. 2012.PMID: 22886768Review.
Camacho M, Dunn B, Torre C, Sasaki J, Gonzales R, Liu SY, Chan DK, Certal V, Cable BB.Camacho M, et al. Among authors: certal v.Laryngoscope. 2016 May;126(5):1246-55. doi: 10.1002/lary.25827. Epub 2015 Dec 22.Laryngoscope. 2016.PMID: 26691675Review.
Camacho M, Riaz M, Tahoori A, Certal V, Kushida CA.Camacho M, et al. Among authors: certal v.Sleep Disord. 2015;2015:293868. doi: 10.1155/2015/293868. Epub 2015 Jul 30.Sleep Disord. 2015.PMID: 26294977Free PMC article.Review.
Song SA, Wei JM, Buttram J, Tolisano AM, Chang ET, Liu SY, Certal V, Camacho M.Song SA, et al. Among authors: certal v.Laryngoscope. 2016 Jul;126(7):1702-8. doi: 10.1002/lary.25847. Epub 2016 Jan 23.Laryngoscope. 2016.PMID: 26801005Review.