?:authorAffiliation
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[\'Tropical Medicine Program Study, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia. dina@usu.ac.id.\', \'Public Health Department, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia.\', \'Neurosurgery Department, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia.\', \'Oral Medicine Department, Faculty of Dentistry, Universitas Syah Kuala, Banda Aceh, Indonesia.\', \'Medical Study Program, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia.\']
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