螺旋型鼻肠管和空肠造瘘管在上消化道肿瘤病人术后营养价值的探讨
라선형비장관화공장조루관재상소화도종류병인술후영양개치적탐토
To study valuation of nasojejunal feeding tube and jejunum fistual after operation of upper gastrointestinal neoplasms
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