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Factor RE, Schmidt RL, Chadwick BE, Witt BJ, Morgan M, Neumayer LA, Layfield LJ.Factor RE, et al.Diagn Cytopathol. 2015 Jun;43(6):510-2. doi: 10.1002/dc.23251. Epub 2015 Jan 28.Diagn Cytopathol. 2015.PMID: 25631215No abstract available.