1. Department of Internal Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan 20155, Indonesia
2. Andrology Study Program, Faculty of Medicine, Universitas Airlangga, Surabaya 60132, Indonesia
3. Department of Biomedical Sciences, Faculty of Medicine, Universitas Airlangga, Surabaya 60132, Indonesia
4. Division of Endocrinology, Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
5. Amity University, Lucknow, Uttar Pradesh 226010, India
6. Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Sumedang 45363, Indonesia