1. Department of Internal Medicine, T.C. Hillers General Public Hospital, Sikka Regency, East Nusa Tenggara 86113, Indonesia
2. Department of Neurology, T.C. Hillers General Public Hospital, Sikka Regency, East Nusa Tenggara 86113, Indonesia
3. Department of Internal Medicine, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta 14440, Indonesia