@article {528,
	title = {Problematic Severe Asthma in Childhood Initiative group. Problematic severe asthma children, not one problem but many: a GA2LEN initiative},
	journal = {European Respiratory Journal~},
	volume = {36},
	year = {2010},
	pages = {196-201},
	type = {Journal Article},
	author = {Hedlin, G. and Bush, A. and Lodrup Carlsen, K and Wennergren, G. and De Benedictis FM and Melen, E and Patrn, J and Wilson,N and Garlsen,KH}
}
