Jonliberti Purba
* Corresponding Author
Sultan Sulaiman District Hospital, Serdang Bedagai District, North Sumatra,

Sri Mulatsih
Department of Pediatrics, Faculty of Medicine, Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta, Indonesia

Neti Nurani
Department of Pediatrics, Faculty of Medicine, Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta, Indonesia

Teguh Triyono
Department of Clinical Pathology, Faculty of Medicine, Universitas Gadjah Mada/Dr. Sardjito General Hospital, Yogyakarta, Indonesia