Dep artment o f Ultrasound , the Second A ffiliated H osp ital o f H arbin Medical University , H arbin 150086 ,China;
Dep artment o f Ultrasound , the Second A ffiliated H osp ital o f H arbin Medical University , H arbin 150086 ,China;
Dep artment o f Ultrasound , the Second A ffiliated H osp ital o f H arbin Medical University , H arbin 150086 ,China;
Dep artment o f Ultrasound , the Second A ffiliated H osp ital o f H arbin Medical University , H arbin 150086 ,China;
Dep artment o f Ultrasound , the Second A ffiliated H osp ital o f H arbin Medical University , H arbin 150086 ,China;
Dep artment o f Ultrasound , the Second A ffiliated H osp ital o f H arbin Medical University , H arbin 150086 ,China;
Dep artment o f Ultrasound , the Second A ffiliated H osp ital o f H arbin Medical University , H arbin 150086 ,China;
Dep artment o f Ultrasound , the Second A ffiliated H osp ital o f H arbin Medical University , H arbin 150086 ,China;