Objective:To study the demonstration of the anterior wall of stomach(AWS)by means of double constrast (DC) radiograph, and improve the detectability of the lesion in AWS.
目的：研究胃前壁双重相的显示，以及如何更好地显示前壁病变。
Objective:To study the demonstration of the anterior wall of stomach(AWS)by means of double constrast (DC) radiograph, and improve the detectability of the lesion in AWS.
目的：研究胃前壁双重相的显示，以及如何更好地显示前壁病变。
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