1 Department of Dermatology, Aleris-Hamlet Private Hospitals, Esbjerg, Denmark.
2 Department of Dermatology, The University of California San Francisco, San Francisco, CA, USA.
3 Department of Dermato-Venerology, Bahir Dar University, Bahir Dar, Ethiopia.
4 Division of Dermatology, Department of Pediatrics, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, Washington, USA.
5 Department of Dermatology, Research Institute for Tropical Medicine, Muntinlupa City, Philippines.
6 Department of Dermatology, Mayo Clinic, Rochester, MN, USA.