儿童胃镜检查前不同时点口服或不口服西甲硅油胃镜视野清晰度的随机平行对照试验
인동위경검사전불동시점구복혹불구복서갑규유위경시야청석도적수궤평행대조시험
Efficacy of the prior administration of simethicone on the quality of visual field in upper gastrointestinal endoscopy in pediatric patients: A randomized, parallel controlled trial
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