On the frequency of co-existing racemose haemangiomata of the retina and brain.
D001921:Brain; D001932:Brain Neoplasms / Q000453:epidemiology*; D006391:Hemangioma / Q000453:epidemiology*; D006801:Humans; D009369:Neoplasms; D012160:Retina
BRAIN NEOPLASMS/epidemiology; HEMANGIOMA/epidemiology; RETINA/neoplasms