Levin Marc H, Gopal Pallavi P, Galetta Steven L
Scheie Eye Institute, Department of Neurology and Ophthalmology, Perelman School of Medicine, University of Pennsylvania, Philadelphia2now with Department of Ophthalmology, University of California, San Francisco.
Department of Pathology, Perelman School of Medicine, University of Pennsylvania, Philadelphia.
JAMA Ophthalmol. 2014 Mar;132(3):359-61. doi: 10.1001/jamaophthalmol.2014.16.