%0 Journal Article %T Doppler-guided retrograde catheterization system %A Frazin, Leon J. %A Chandran, Krishnan B. %A Khasho, Fouad %J Proceedings of SPIE %V 1425 %N 1 %P 207-207 %@ 0277-786X %D 1991-05-01 %I SPIE %~ DeepDyve