**Author details**

Erjan Fikri1 \*, Ahmad Razi Maulana Alnaz2 and Fini Meirisa Alnaz3

1 Faculty of Medicine, Division of Pediatric Surgery, Department of Surgery, Universitas Sumatera Utara, Medan, Indonesia

2 Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia

3 Faculty of Medicine, Division of Pediatric Surgery, Department of Surgery, Universitas Padjajaran, Bandung, Indonesia

\*Address all correspondence to: binnazief@gmail.com

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