طراحي يك نوع مبادله كن لوله گرمايي و تعيين عوامل موثر در انتقال حرارت و افت فشار بوسيله يك برنامه كا
Published in Pediatric Pulmonology • Oct 28, 2002
Authors:
سیدحسین نوعی باغبان
Abstract
We report an infant with an anterior neck mass present only on straining. Airway fluoroscopy revealed this to be due to superior mediastinal herniation. Neck masses apparent only during Valsalva maneuver are rare and awareness of the differential diagnosis is important to avoid unnecessary investiga...
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