Marigo V, Roberts DJ, Lee SM, Tsukurov O, Levi T, Gastier JM, etal. (July 1995). "Cloning, expression, and chromosomal location of SHH and IHH: two human homologues of the Drosophila segment polarity gene hedgehog". Genomics. 28 (1): 44–51. doi:10.1006/geno.1995.1104. hdl:11380/455504. PMID7590746.
Marigo V, Roberts DJ, Lee SM, Tsukurov O, Levi T, Gastier JM, etal. (July 1995). "Cloning, expression, and chromosomal location of SHH and IHH: two human homologues of the Drosophila segment polarity gene hedgehog". Genomics. 28 (1): 44–51. doi:10.1006/geno.1995.1104. hdl:11380/455504. PMID7590746.
Marigo V, Roberts DJ, Lee SM, Tsukurov O, Levi T, Gastier JM, etal. (July 1995). "Cloning, expression, and chromosomal location of SHH and IHH: two human homologues of the Drosophila segment polarity gene hedgehog". Genomics. 28 (1): 44–51. doi:10.1006/geno.1995.1104. hdl:11380/455504. PMID7590746.