Zhao Z, Lee CC, Baldini A, Caskey CT (Nov 1995). „A human homologue of the Drosophila polarity gene frizzled has been identified and mapped to 17q21.1”. Genomics27 (2): 370–3. DOI:10.1006/geno.1995.1060. PMID7558010.
Sagara N, Toda G, Hirai M, Terada M, Katoh M (Dec 1998). „Molecular cloning, differential expression, and chromosomal localization of human frizzled-1, frizzled-2, and frizzled-7”. Biochem Biophys Res Commun252 (1): 117–22. DOI:10.1006/bbrc.1998.9607. PMID9813155.
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Zhao Z, Lee CC, Baldini A, Caskey CT (Nov 1995). „A human homologue of the Drosophila polarity gene frizzled has been identified and mapped to 17q21.1”. Genomics27 (2): 370–3. DOI:10.1006/geno.1995.1060. PMID7558010.
Sagara N, Toda G, Hirai M, Terada M, Katoh M (Dec 1998). „Molecular cloning, differential expression, and chromosomal localization of human frizzled-1, frizzled-2, and frizzled-7”. Biochem Biophys Res Commun252 (1): 117–22. DOI:10.1006/bbrc.1998.9607. PMID9813155.