1 Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
2 Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden; Dermato-Venereology, Karolinska University Hospital, Stockholm, Sweden.
3 Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden.
4 The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institutet, Stockholm, Sweden.
5 Dermatology and Venereology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden; Dermato-Venereology, Karolinska University Hospital, Stockholm, Sweden. Electronic address: [email protected].