Vascular endothelial growth factor in ocular fluid of patients with diabetic retinopathy and other retinal disorders. - Aiello,LP.; Avery,RL.; Arrigg,PG.; Keyt,BA.; Jampel,HD.; Shah,ST.; Pasquale,LR.; Thieme,H.; Iwamoto,MA.; Park,JE. (N Engl J Med, 1994)