Biochemistry Department, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Faculty of Medicine, Universitas IndonesiaJakarta, Indonesia
Widjaja, S.S., Biochemistry Department, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Rusdiana, R., Biochemistry Department, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Wiyono, L., Faculty of Medicine, Universitas IndonesiaJakarta, Indonesia