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ARTICLE IN PRESS
Surya Akbar
* Corresponding Author
Fakultas Kedokteran Universitas Islam Sumatera Utara, Medan
Indonesia
Mora Claramita
Fakultas Kedokteran Universitas Gadjdah Mada, Yogyakarta
Indonesia
Tri Nur Kristina
Fakultas Kedokteran Universitas Diponegoro, Semarang
Indonesia