1 Centre of Evidence Based Dermatology, School of Medicine, University of Nottingham, Nottingham, United Kingdom; University of Tours, University of Nantes, INSERM 1246-SPHERE, Tours, France; Department of Dermatology, CHRU Tours, Tours, France.
2 Birmingham Children's Hospital, Birmingham, United Kingdom.
3 Centre of Evidence Based Dermatology, School of Medicine, University of Nottingham, Nottingham, United Kingdom.
4 Centre of Evidence Based Dermatology, School of Medicine, University of Nottingham, Nottingham, United Kingdom. Electronic address: [email protected].