Heru Maranatha Nababan Department of Obstetric – Gynecology, Faculty of Medicine, Universitas Riau, Arifin Achmad General Hospital, Pekanbaru, Riau Indonesia
Donel S Department of Obstetric – Gynecology, Faculty of Medicine, Universitas Riau, Arifin Achmad General Hospital, Pekanbaru, Riau Indonesia
Arfianti Arfianti Department of Biomedicine, Faculty of Medicine, Universitas Riau, Pekanbaru, Riau Indonesia
Research Assistant, Department of Internal Medicine, Faculty of Medicine, Universitas Riau, Arifin Achmad General Hospital, Pekanbaru, Indonesia Indonesia