Metvix photodynamic therapy in patients with basal cell carcinoma at risk of complications and poor cosmetic outcome after conventional therapy. - Wennberg,A.M.; Horn,M.; Wulf,H.C.; Warloe,T.; Rhodes,I.; Fritsch,C.; Kaufmann,R.; de Rie,M.; Wolf,P.; Stender,I.M.; Soler,A. (J Eur Acad Derm Venereo, 2001)