Nicholas Hamonangan Sibarani Department of Anesthesiology and Intensive Therapy, Faculty of Medicine, Universitas Sumatera Utara, Adam Malik General Hospital, Medan Indonesia
Andriamuri Primaputra Lubis Department of Anesthesiology and Intensive Therapy, Faculty of Medicine, Universitas Sumatera Utara, Adam Malik General Hospital, Medan Indonesia
Chrismas Gideon Bangun Department of Anesthesiology and Intensive Therapy, Faculty of Medicine, Universitas Sumatera Utara, Adam Malik General Hospital, Medan Indonesia
Yuki Yunanda Department of Community Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia Indonesia