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Saitoh T, Moriwaki J, Koike J, Takagi A, Miwa T, Shiokawa K, Katoh M (Mar 2001). "Molecular cloning and characterization of FRAT2, encoding a positive regulator of the WNT signaling pathway". Biochem Biophys Res Commun. 281 (3): 815–20. doi:10.1006/bbrc.2001.4421. PMID11237732.