title: [Ultrastructural study on retinal haemorrhage and function of macrophage].
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008264:Macrophages / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D012166:Retinal Hemorrhage / Q000473:pathology*; D012171:Retinal Vessels / Q000648:ultrastructure*