1 Department of Infectious Diseases, Military University Hospital Prague, Charles University, 1st Faculty of Medicine, U Vojenske nemocnice 1200, Prague, 169 02, Czech Republic. Electronic address: marekstefan@centrum.cz.
2 Department of Radiology, Military University Hospital Prague, Prague, Czech Republic.
3 Department of Infectious Diseases, Ceske Budejovice Hospital, Ceske Budejovice, Czech Republic.
4 Department of Infectious Diseases, Military University Hospital Prague, Charles University, 1st Faculty of Medicine, U Vojenske nemocnice 1200, Prague, 169 02, Czech Republic.