Niu Haiyan について
Dep. of Ultrasound, General Hospital of Beijing Military District, Beijing について
Huang Xiaoling について
Dep. of Ultrasound, General Hospital of Beijing Military District, Beijing について
Zhang Jiangxia について
Dep. of Ultrasound, General Hospital of Beijing Military District, Beijing について
Zhongguo Chaoshengyixue Zazhi について
Gradient について