1. Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg 413 45, Sweden
2. Department of Development and Research, Armed Forces Center for Defense Medicine, Västra Frölunda 426 76, Sweden
3. Department of Aviation Security, Military University of Aviation, Dęblin 08-521, Poland
4. Harvard Humanitarian Initiative, T.H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA