Tamura, T In vitro methods for studying the accuracy of velocity determination and spatial resolution of a color Doppler flow mapping system. [electronic resource] - American heart journal Jul 1987 - 152-8 p. digital Publication Type: Journal Article ISSN: 0002-8703 Standard No.: 10.1016/0002-8703(87)90319-x doi Subjects--Topical Terms: Blood Flow VelocityHumansRheology--standardsUltrasonography--methods