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Driemel O, Müller-Richter UD, Hakim SG, Bauer R, Berndt A, Kleinheinz J, Reichert TE, Kosmehl H.Driemel O, et al.Head Face Med. 2008 Jul 31;4:17. doi: 10.1186/1746-160X-4-17.Head Face Med. 2008.PMID: 18671846Free PMC article.