Difficult asthma in children

Symposium
Chairs: I. Balfour-Lynn (London, United Kingdom), P. Pohunek (Prague, Czech Republic)
Aims: To give an update of the most recent work on difficult asthma and to review the unresolved issues.

The pathology and immunology of difficult childhood asthma D. Payne (London, United Kingdom)
The physiology of difficult childhood asthma: is it only obstruction? U. Frey (Bern, Switzerland)
Clinical pearls and pitfalls P. L. P. Brand (Zwolle, The Netherlands)
Treatment of severe childhood asthma: what’s the evidence? A. Bush (London, United Kingdom)