上消化道病变的数字化成像激光照像双对比造影和同期内镜诊断对照分析
상소화도병변적수자화성상격광조상쌍대비조영화동기내경진단대조분석
The analysis of comparing the diagnosis of pathological changes of upper alimentary canal by digital laser imaging DC with the one by gastroscopy
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