[Acute respiratory insufficiency in children].

Acute respiratory distress in children is often a consequence of asthma. Other causes are subglottic laryngitis, epiglottitis, aspiration of a foreign body, acute bacterial pneumonia or pneumothorax. History and physical examination should differentiate between the various diseases.

[Hepatitis B in children in 4 university centers in The Netherlands].

Objective: To evaluate the prevalence and the natural course of hepatitis B infection in children.

Design: Retrospective longitudinal.

Setting: Four university pediatric centres.