1. 1Department of Dermatology and Venereology, Faculty of Medicine, Universitas Airlangga-Dr. Soetomo General Academic Hospital Surabaya, Surabaya, East Java, Indonesia;
2. 2Leprosy Study Group, Institute of Tropical Disease, Surabaya, Indonesia;
3. 3Department of Dermatology and Venereology, Erasmus MC, Rotterdam, The Netherlands