1. Department of Public Health, Semmelweis University, Faculty of Medicine, Budapest, Hungary
2. Department of Hematology and Stem Cell Transplantation, National Institute for Hematology and Infectious Diseases, South Pest Central Hospital, Budapest, Hungary
3. Department of Biochemistry and Molecular Biology at University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
4. Department of Pulmonology, Semmelweis University, Budapest, Hungary