Authors
B. Lubis
Division of Pediatric Hematology and Oncology, Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
S. M. Lubis
Division of Pediatric Endocrinology, Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
B. D. Sulistyowati
Pediatric Ophthalmology Department, SMEC Eye Hospital, Medan, Indonesia
