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Knöckel J, Molina-Cruz A, Fischer E, Muratova O, Haile A, Barillas-Mury C, Miller LH.Knöckel J, et al.PLoS One. 2013 May 3;8(5):e63387. doi: 10.1371/journal.pone.0063387. Print 2013.PLoS One. 2013.PMID: 23658824Free PMC article.