1. Division of Hematology and Oncology, Department of Internal Medicine of Dr. Saiful Anwar General Hospital, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia.
2. Department of Clinical Pathology of Dr. Saiful Anwar General Hospital, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia.
3. Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Surabaya, East Java, 60231, Indonesia.