Color Doppler Trolley Systems S20,doppler ultrasound Color Doppler Trolley Systems S20,doppler ultrasound,color ultrasound,ultrasound scannerTouching Your Needs, with Optimum Solutions S20, the ... color Doppler system from Yingren, is specially designed for full ultrasound applications, including Radiology, Cardiovascular, OB/GYN and others. This system ...