1. Public Health Faculty, Universitas Airlangga, Surabaya, Indonesia
2. Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
3. Ganesha Husada College of Health, Kediri, Indonesia
4. School of Nursing, Faculty of Medicine, Universitas Lambung Mangkurat, Banjarbaru, Indonesia
5. Patria Husada College of Health, Blitar, Indonesia