复方异丙托溴铵术前雾化预防老年急腹症肺部并发症的临床研究
복방이병탁추안술전무화예방노년급복증폐부병발증적림상연구
Clinical Study of Compound Ipratropium Bromide Preoperative Inhalation for Preventing Pulmonary Complications in Elderly Patients with Acute Abdominal Diseases
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