An nine-month-old infant was admitted to our institution for investigation of tracheal obstructive symptoms: frequent episodes of respiratory tract infection, and cough (all symptoms since 6 months) and was treated medically in the pediatric ward. On admission, the patient’s blood pressure was 80/60 mmHg, and his pulse was 120 beats/min and rhythmic. His respiratory rate was 22 breaths/min with normal…
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