Bak M, Hansen C, Friis Henriksen K, Tommerup N (Jul 2001). "The human hedgehog-interacting protein gene: structure and chromosome mapping to 4q31.21→q31.3". Cytogenet Cell Genet. 92 (3–4): 300–3. doi:10.1159/000056918. PMID11435703. S2CID32938414.
Bak M, Hansen C, Friis Henriksen K, Tommerup N (Jul 2001). "The human hedgehog-interacting protein gene: structure and chromosome mapping to 4q31.21→q31.3". Cytogenet Cell Genet. 92 (3–4): 300–3. doi:10.1159/000056918. PMID11435703. S2CID32938414.
Bak M, Hansen C, Friis Henriksen K, Tommerup N (Jul 2001). "The human hedgehog-interacting protein gene: structure and chromosome mapping to 4q31.21→q31.3". Cytogenet Cell Genet. 92 (3–4): 300–3. doi:10.1159/000056918. PMID11435703. S2CID32938414.