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Badawi, A. , Johnson, J. , Mahfouz, M.. "Scatterer Density in Edge and Coherence Enhancing Nonlinear Anisotropic Diffusion for Medical Ultrasound Speckle Reduction". World Academy of Science, Engineering and Technology, Open Science Index 5, International Journal of Medical and Health Sciences, (2007), 1(5), 333 - 356.