2001
Eighth Japanese-German Workshop on ‚Molecular and Cellular Aspects of
Carcinogenesis‘

1999
Seventh Japanese-German Workshop on ‚Molecular and Cellular Aspects of
Carcinogenesis‘

1997
Sixth Japanese-German Workshop on ‚Molecular and Cellular Aspects of
Carcinogenesis‘

1995
Sixth Charles Heidelberger Conference on ‚Control of Cell Proliferation
and Differentiation: Molecular Targets in Carcinogenesis and Cancer Therapy‘
in conjunction with the Fifth Japanese-German Workshop on ‚Molecular and
Cellular Aspects of Carcinogenesis‘

1993
Fourth Japanese-German Workshop on ‚Molecular and Cellular Aspects of
Carcinogenesis‘

1991
Third Japanese-German Workshop on ‚Molecular and Cellular Aspects of
Carcinogenesis‘

1990
First Meeting of the Task Force ‚Cytokines‘ of the Research Branch of
the European Organization for Research and Treatment of Cancer (EORTC)

1989
Second Japanese-German Workshop on ‚Molecular and Cellular Aspects of
Carcinogenesis‘

1987
First Japanese-German Workshop on ‚Molecular and Cellular Aspects of
Carcinogenesis‘

1977
International Symposium on ‚Cell Proliferation and Differentiation in
Normal and Neoplastic Cell Systems‘ der World Health Organisation (WHO)