米曲菌胰酶片在预防老年鼻饲病人留置鼻胃管并发症的疗效观察
미곡균이매편재예방노년비사병인류치비위관병발증적료효관찰
Observation on curative effect of Oryz-Aspergillus and Pancreatin tablet in the prevention of complication of indwelling nasogastric tube for senile patients adopt nasogastric feeding
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