海量图书期刊资源，随时随地畅享阅读乐趣
Accurate recording of Doppler ultrasound signals : Warner M.H.; Fairhead A.C. Department of Bio-medical Physics and Bio-engineering, University of Aberdeen, Aberdeen, UK1997
An investigation of the changes in aortic diameter and an evaluation of their effect on Doppler measurement of cardiac output in pregnancyM.H. Warner; A.C. Fairhead; J. Rawles; F.M. MacLennan · 1996