Lydia Ernawati Rahayu Faculty of Medicine, Universitas Prima Indonesia, Medan
Linda Chiuman Faculty of Medicine, Universitas Prima Indonesia, Medan Indonesia
Chrismis Novalinda Ginting Faculty of Medicine, Universitas Prima Indonesia, Medan Indonesia
Fakultas Kedokteran, Universitas Prima Indonesia, Medan, Sumatera Utara.
Sahna Ferdinand Ginting Faculty of Medicine, Universitas Prima Indonesia, Medan