[1] UNIV MILAN,DEPT PHARMACOL,CHAIR CHEMOTHERAPY,I-20129 MILAN,ITALY
[2] UNIV COPENHAGEN,PANUM INST,INST MED ANAT,DK-2200 COPENHAGEN,DENMARK
[3] UNIV MUNSTER,INST NEUROPATHOL,D-48149 MUNSTER,GERMANY
[4] UNIV MUNSTER,INST REPROD MED,D-48149 MUNSTER,GERMANY
[5] UNIV MUNSTER,INST ANAT,D-48149 MUNSTER,GERMANY