泌尿外科老年手术病人应用3种促进胃肠功能恢复方法的有效性比较
비뇨외과노년수술병인응용3충촉진위장공능회복방법적유효성비교
Comparison on effectiveness of three kinds of methods to promote recovery of gastrointestinal function of elderly patients in department of urological surgery
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