(1) Program in Biomedical Sciences, Postgraduate, Faculty of Medicine, Universitas Riau, Pekanbaru, Indonesia; Department of Pharmacology, Medical Faculty, Abdurrab University, Pekanbaru, Indonesia, ID
(2) Program in Biomedical Sciences, Postgraduate, Faculty of Medicine, Universitas Riau, Pekanbaru, Indonesia; Department of Pharmacology, Faculty of Medicine, Universitas Awal Bros, Pekanbaru, Indonesia, ID
(3) Department of Public Health, Faculty of Medicine, Universitas Riau, Pekanbaru, Indonesia, ID
(4) Department of Histology, Faculty of Medicine, Universitas Riau, Pekanbaru, Indonesia, ID