Medical Mystery: Brown Eye and Blue Eye -- The Answer
NEJM 353:2409-2410, Gesundheit,B. &Greenberg,M., 2005
Von Recklinghausen Neurofibromatosis
NEJM 305:1617-1627, Riccardi,V.M., 1981
Abnormal Iris Vasculature in Myotonic Dystrophy
Arch Neurol 35:224, Stern,L.Z.,et al, 1978