1 Department of Infectious Diseases, Istanbul University Cerrahpasa School of Medicine, Cerrahpasa Cad. 34098 Fatih, Istanbul, Turkey. Electronic address: ilkerinancbalkan@hotmail.com.
2 Department of Neurology, Istanbul University Cerrahpasa School of Medicine, Istanbul, Turkey.
3 Department of Internal Medicine, Istanbul University Cerrahpasa School of Medicine, Istanbul, Turkey.
4 Department of Infectious Diseases, Istanbul University Cerrahpasa School of Medicine, Cerrahpasa Cad. 34098 Fatih, Istanbul, Turkey.
5 Department of Infectious Diseases, Istanbul University Cerrahpasa School of Medicine, Cerrahpasa Cad. 34098 Fatih, Istanbul, Turkey. Electronic address: rozaras@yahoo.com.