[1] VIENNA UNIV, WIENER ALLGEMEINES KRANKENHAUS, DIV RADIOL, A-1010 VIENNA, AUSTRIA
[2] VIENNA UNIV, WIENER ALLGEMEINES KRANKENHAUS, DEPT INTERNAL MED, A-1010 VIENNA, AUSTRIA
[3] VIENNA UNIV, WIENER ALLGEMEINES KRANKENHAUS, DEPT DERMATOL, A-1010 VIENNA, AUSTRIA
[4] RUDOLFINERHAUS, DEPT DIAGNOST IMAGING, VIENNA, AUSTRIA
[5] TEXAS TECH UNIV, HLTH SCI CTR, DEPT RADIOL, LUBBOCK, TX 79430 USA