| Authors: |
Siregar OR; Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia., Wahyuni AS; Department of Community Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia., Pasaribu AP; Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia., Edianto D; Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia., Ugrasena ID; Department of Pediatrics, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia., Amelia R; Department of Community Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia., Lubis IN; Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia., Rusda M; Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia. |