[1] FRIEDRICH SCHILLER UNIV, BEREICHS MED, CHIRURG KLIN & POLIKLIN, BACH STR 18, 69 JENA, EAST GERMANY
[2] FRIEDRICH SCHILLER UNIV, BEREICHS MED, RONTGEN DIAG ABT, JENA, EAST GERMANY
[3] FRIEDRICH SCHILLER UNIV, BEREICHS MED, RADIOL KLIN & POLIKLIN, JENA, EAST GERMANY