%0 Journal Article %T Doppler Ultrasonography of the Ophthalmic and Central Retinal Vessels %A Guthoff, Rudolf F. %A Berger, Roland W. %A Winkler, Peter %A Helmke, Knut %A Chumbley, Lee C. %J Archives of Ophthalmology %V 109 %N 4 %P 532-536 %@ 0003-9950 %D 1991-04-01 %I American Medical Association %~ DeepDyve