Adriansyah, Rizky, <p><span lang="EN-US">Department of Pediatrics, Faculty of Medicine,</span><span lang="EN-US"> </span><span lang="EN-US">Universitas Sumatera Utara</span></p><p>Department of Pediatrics, Adam Malik General Hospital, Medan</p><p><span lang="EN-US"><br /></, Indonesia
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