%0 Comment %T Commentary on the European S3-guidelines on the systemic treatment of psoriasis. %A Giannetti A %J J Eur Acad Dermatol Venereol %V 24 %N 3 %D Mar 2010 %M 20070453 %F 9.228 %R 10.1111/j.1468-3083.2009.03558.x %X