Authors: Ragna H Thorleifsdottir; Sigrun L Sigurdardottir; Bardur Sigurgeirsson; Jon H Olafsson; Hannes Petersen; Martin I Sigurdsson; Johann E Gudjonsson; Andrew Johnston; Helgi Valdimarsson Journal: J Am Acad Dermatol Date: 2016-08-09 Impact factor: 11.527
Authors: Mayke B G Koek; Erik Buskens; Huib van Weelden; Paul H A Steegmans; Carla A F M Bruijnzeel-Koomen; Vigfús Sigurdsson Journal: BMJ Date: 2009-05-07