Deloukas P; et al. (2001). "The DNA sequence and comparative analysis of human chromosome 20". Nature. 414 (6866): 865–871. doi:10.1038/414865a. PMID11780052.
"Map Viewer". National Center for Biotechnology Information. Retrieved October 17, 2013.
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Deloukas P; et al. (2001). "The DNA sequence and comparative analysis of human chromosome 20". Nature. 414 (6866): 865–871. doi:10.1038/414865a. PMID11780052.