2 Department of Internal Medicine 3 and Institute for Clinical Immunology.
3 Department of Radiology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen.
4 Institute of Clinical Microbiology and Hygiene, University Regensburg, Regensburg.
5 Experimental and Clinical Research Center, a joint cooperation between the Charité Medical Faculty and the Max-Delbrück Center for Molecular Medicine, Berlin, Germany.
6 Department of Clinical Pharmocology, Vanderbilt University, Nashville, TN, USA.