2[2]A. Nurten Akarsu, lvaylo Stoilov, Engin Yilmaz, et al. Genomic structure of HOXD13 gene : a nine polyalanine duplication cause synpolydactyly in two unrelated familes [ J ]. Human Molecular Genetics, 1996; 5(7) :945 - 952.
3[3]Goodman FR, Bacchelli C,McKeown CME,et al. An amino acid substitution in the HOXD13 homeodomain cause a novel brachydactyly-polydactyly syndrome[J]. Eur J Hum Genet. 2001, 9(Suppl 1 ): 179.
4[4]Radhakrishna U , Wild A, G izeschik KH, et al. Mutation in GL13 in postaxial polydactyly type A[ J]. Nature Genet, 1997,17(3) :269 - 271.
5[5]Bo Gao, Jingzhi guo, Chaowen She,et al. Mutations in IHH ,encoding Indian hedgehog, cause brachydactyly type A- 1[J] .Nature genetics,2001, 28:386- 388.