A gulper eel can eat an animal larger than itself and accommodate it in an expandable stomach.
它能一口咽下比它还一只海底动物并且调节它
胃变得
。
A gulper eel can eat an animal larger than itself and accommodate it in an expandable stomach.
它能一口咽下比它还一只海底动物并且调节它
胃变得
。
Expandable metal stent placement was the most effective therapy for tracheostenosis induced by nodular goiter.Patients with tracheostomy cannula placement were at high risk of severe infection.
工气道重建后均
缓解气管狭窄,以气管内支架置
术效果最佳,气管切开套管置入次之。
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