Methods: We determined the fasting gallbladder volume and gallbladder volume at different time points after meal with real time ultrasonography.
方法：实时超声图像检测空腹和餐后不同时间胆囊容积。
Methods: We determined the fasting gallbladder volume and gallbladder volume at different time points after meal with real time ultrasonography.
方法：实时超声图像检测空腹和餐后不同时间胆囊容积。
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