1. Department of Hematology, Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran.
2. Department of Hematology, Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran.
3. Department of Hematology, Kerman University of Medical Sciences, Kerman, Iran.
4. Department of Hematology, Zanjan Metabolic Diseases Research Center, Zanjan University of Medical Science, Zanjan, Iran.