_:vb50954531 . _:vb50954531 . _:vb50954531 . _:vb50954531 . _:vb50954531 "A Human immunodeficiency virus infectious disease that results_in microvascular changes located_in retina, has_material_basis_in Human immunodeficiency virus 1 or has_material_basis_in Human immunodeficiency virus 2. The infection has_symptom cotton-wool spots, has_symptom retinal hemorrhages, and has_symptom microaneurysms."^^ . _:vb50954531 . _:vb50954531 "url:http://www.ophthobook.com/chapters/infections"^^ . _:vb50954531 "url:http://books.google.com/books?id=GP0MEhqMvusC&pg=PA146&lpg=PA146&dq"^^ .