POSSUM和P-POSSUM评分评价肠内营养对胃癌根治术后并发症率和死亡率的影响
POSSUM화P-POSSUM평분평개장내영양대위암근치술후병발증솔화사망솔적영향
Evaluation of the effect of enteral nutrition after radical gastrectomy by POSSUM and P-POSSUM scoring systems
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