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Czirók A, Rupp PA, Rongish BJ, Little CD.Czirók A, et al. Among authors: rupp pa.J Microsc. 2002 Jun;206(Pt 3):209-17. doi: 10.1046/j.1365-2818.2002.01032.x.J Microsc. 2002.PMID: 12067365
Rupp PA, Czirók A, Little CD.Rupp PA, et al.Development. 2004 Jun;131(12):2887-97. doi: 10.1242/dev.01160. Epub 2004 May 19.Development. 2004.PMID: 15151986