1 Students Research Committee, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
2 Department of Internal Medicine, Emam Khomeini Hospital, Ardabil University of Medical Sciences, Ardabil, Iran.
3 Deputy of Research and Technology, Ardabil University of Medical Sciences, Ardabil, Iran; Immunology Research Center, Ardabil University of Medical Sciences, Ardabil, Iran.
4 Department of Microbiology, Parasitology, and Immunology, Ardabil University of Medical Sciences, Ardabil, Iran. Electronic address: E.safarzadeh@arums.ac.ir.