1. Department of Medical/Clinical Laboratory Science, Universitas Muhammadiyah, Semarang, Indonesia.
2. Head of Clinical Pathology subspecialist program, Medical faculty, Diponegoro University, Semarang, Indonesia.
3. Nutrition Science, Faculty of Nursing and Health Sciences, Universitas Muhammadiyah Semarang, Indonesia.
4. Department of Midwifery, Faculty of Nursing and Health Science, Universitas Muhammadiyah Semarang, Semarang, Indonesia.
5. Lincoln University College, Wisma Lincoln, No. 12-18, Jalan 55 6/12, 47301 Petaling Jaya, Selangor D. E., Malaysia.