1. Echocardiography of the aortic root;Gramiak;Invest. Radiol.,1968
2. Cerebrospinal fluid flow demonstrated by colour Doppler imaging;Jaspan,1990
3. Colour Doppler imaging in neurosonography;Jaspan;Br. Med. Ultrasound Soc. Bull.,1992
4. Ultrasonic detection of cavitation at catheter tips;Kremkau;Am. J. Rentgenol.,1986
5. A versatile test-object for the calibration of ultrasonic Doppler flow instruments;McDicken;Ultrasound Med. Biol.,1986