Document Type : Original Article
Authors
1 Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara Universitas Sumatera Utara Hospital, Medan, North Sumatera, Indonesia.
2 Department of Pediatrics, Faculty of Medicine, Universitas Sumatera Utara Universitas Sumatera Utara Hospital, Medan, North Sumatera, Indonesia
Abstract
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