1. Biology Department; Al Azhar University-Gaza; Gaza Palestine
2. Division of Hematology, Department of Internal Medicine, School of Medicine; University of Utah; Salt Lake City UT USA
3. Al Nasser Pediatric Hospital; Palestinian Ministry of Health; Gaza Palestine
4. Institute for Clinical and Experimental Pathology; ARUP Laboratories; Salt Lake City UT USA
5. Department of Pathology, School of Medicine; University of Utah; Salt Lake City UT USA