1. Light LH. Noninvasive ultrasound technique for observing flow in the human aorta.Nature 1969;244: 1119–1121.
2. Light LH, Cross G. Cardiovascular data by transcutaneous aortovelography. In: Roberts C, ed.Blood Flow Measurement. London: Sector Publishing Company, 1972; 60–63.
3. Cross G, Light LH. Noninvasive intrathoracic blood velocity measurement in the assessment of cardiovascular function.Biomed Eng 1974;9: 464–471.
4. Sequeira RF, Light LH, Cross G, Raffery EB. Transcutaneous aortovelography, a quantitative evaluation.Br Heart J 1976;38: 443–450.
5. Bilton AH, Brotherhood J, Cross G, Hanson GC, Light LH, Sequeira RF. Transcutaneous aortovelography as measure of central blood flow.J Physiol 1978;281: 4–5P.