Dickinson JL, Sale MM, Passmore A, FitzGerald LM, Wheatley CM, Burdon KP, Craig JE, Tengtrisorn S, Carden SM, Maclean H, Mackey DA (2006). "Mutations in the NDP gene: contribution to Norrie disease, familial exudative vitreoretinopathy and retinopathy of prematurity". Clin Experiment Ophthalmol. 34 (7): 682–8. doi:10.1111/j.1442-9071.2006.01314.x. PMID16970763.
Dickinson JL, Sale MM, Passmore A, FitzGerald LM, Wheatley CM, Burdon KP, Craig JE, Tengtrisorn S, Carden SM, Maclean H, Mackey DA (2006). "Mutations in the NDP gene: contribution to Norrie disease, familial exudative vitreoretinopathy and retinopathy of prematurity". Clin Experiment Ophthalmol. 34 (7): 682–8. doi:10.1111/j.1442-9071.2006.01314.x. PMID16970763.