【新英格兰医学杂志NEJM】Laryngeal Mask Airway in Medical Emergencies喉罩通气技术

https://www.nejm.org/doi/10.1056/NEJMvcm0909669?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed
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