Chen, E. Y., Liao, Y., Smith, D. H., Barrera−Saldaña, H. A., Gelinas, R. E., & Seeburg, P. H. (1989).
The human growth hormone locus: complete nucleotide sequence, evolution and expression of its genes.
Genomics, 4(4), 479-497. doi:dx.doi.org/10.1016/0888-7543(89)90271-1.