{Reference Type}: Comment {Title}: Commentary on the European S3-guidelines on the systemic treatment of psoriasis. {Author}: Giannetti A; {Journal}: J Eur Acad Dermatol Venereol {Volume}: 24 {Issue}: 3 {Year}: Mar 2010 {Factor}: 9.228 {DOI}: 10.1111/j.1468-3083.2009.03558.x {Abstract}: