Taki, H. , Sakamoto, T. , Yamakawa, M. , Shiina, T. , Sato, T.. "Indicator of Small Calcification Detection in Ultrasonography using Decorrelation of Forward Scattered Waves". World Academy of Science, Engineering and Technology, Open Science Index 47, International Journal of Biomedical and Biological Engineering, (2010), 4(11), 544 - 548.