title: Dynamic changes of fenestrations in choriocapillaries.
mesh_terms: D000818:Animals; D001717:Birds / Q000033:anatomy & histology; D002196:Capillaries / Q000648:ultrastructure; D003624:Darkness; D004727:Endothelium / Q000648:ultrastructure; D008297:Male; D012171:Retinal Vessels / Q000648:ultrastructure*