Masryna Siagian Departemen of Public Health, Universitas Prima Indonesia, Medan Indonesia
Victor Trismanjaya Hulu Departemen of Public Health, Universitas Prima Indonesia, Medan Indonesia
Rapael Ginting Departemen of Public Health, Universitas Prima Indonesia, Medan Indonesia
Putranto Manalu Departemen of Public Health, Universitas Prima Indonesia Indonesia
Vina Helsa Laora Sijabat Departemen of Public Health, Universitas Prima Indonesia, Medan Indonesia
Nita Kastrina Tarigan Departemen of Public Health, Universitas Prima Indonesia, Medan Indonesia
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