Affiliation: | 1. Department of Pulmonary and Critical Care Medicine;5. Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire;4. Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire;2. Geisel School of Medicine at Dartmouth, Hanover, New Hampshire;3. Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria, Egypt |