Institution: | 1. Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, 95 Yongan Road, Beijing 100050, China;2. Department of Ultrasound, the Southern Building, Chinese People''s Liberation Army General Hospital, 28 Fuxing Road, Beijing 100853, China;3. Department of Ultrasound, Chinese People''s Liberation Army General Hospital, 28 Fuxing Road, Beijing 100853, China;4. Department of Pathology, Chinese People''s Liberation Army General Hospital, 28 Fuxing Road, Beijing 100853, China |