肠内营养对肠道恶性肿瘤老年患者术后免疫功能及肠功能恢复的影响
장내영양대장도악성종류노년환자술후면역공능급장공능회복적영향
The clinical effects of enteral nutrition on postoperative immune function and bowel function recovery in elderly patients with intestinal malignant tumor
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