1. Department of Urology, Faculty of Medicine, Universitas Airlangga-Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
2. Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
3. Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
4. Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga-Dr. Soetomo General Academic Hospital, Surabaya, Indonesia
5. Department of Public Health, Faculty of Medicine, Universitas Airlangga-Dr. Soetomo General Academic Hospital, Surabaya, Indonesia.