Added Value of a New Strain Elastography Technique in Conventional Ultrasound for the Diagnosis of Breast Masses: A Prospective Multicenter Study oleh Qi Wei, Yu-Jing Yan, Ge-Ge Wu, Xi-Rong Ye, Fan Jiang, Jie Liu, Gang Wang, Yi Wang, Yu Wang, Zhi-Ping Pan, Jin-Hua Hu, Juan Song, Christoph F. Dietrich, Xin-Wu Cui