1. Faculty of Medicine, Department of Dermatology and Venereology, Universitas Airlangga – Dr. Soetomo Teaching Hospital, Surabaya, Indonesia;
2. Faculty of Medicine, University of Muhammadiyah Sumatera Utara, Indonesia;
3. Stem Cell Laboratory, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia;
4. Virology and Immunology Laboratory, Faculty of Veterinary Medicine, Department of Microbiology, Universitas Airlangga, Surabaya, Indonesia