Craig L. Wilkerson, Nasreen A. Syed, Marian R. Fisher, Nancy L. Robinson, In golf H. L. Wallow, Daniel M. Albert. Melanocytes and Iris Color. Light Microscopic Findings. Archives of Ophthalmology. Vol 144. No. 4. April 1996. [1]
Roméro-Graillet C, Aberdam E, Biagoli N, Massabni W, Ortonne JP and Ballotti R (1996). "Ultraviolet B radiation acts through the nitric oxide and cGMP signal transduction pathway to stimulate melanogenesis in human melanocytes". Journal of Biological Chemistry271 (45): 28052–6. PMID8910416. doi:10.1074/jbc.271.45.28052.
Roméro-Graillet C, Aberdam E, Biagoli N, Massabni W, Ortonne JP and Ballotti R (1996). "Ultraviolet B radiation acts through the nitric oxide and cGMP signal transduction pathway to stimulate melanogenesis in human melanocytes". Journal of Biological Chemistry271 (45): 28052–6. PMID8910416. doi:10.1074/jbc.271.45.28052.