Founder and Chair, European LeukemiaNet (ELN) 2002-current

Founder and chair of the German CML Study Group 1982-2017

Former Secretary General, International Association of Comparative Research on Leukemia & Related Diseases (IACRLRD)

Former Chief of Medicine, Dean of his Faculty and President, German Society of Hematology and Oncology

Honorary member of the Polish and German Societies for Hematology and Oncology

Current focus: promotion of cooperative research for curing leukemia

Medizinische Fakultät Mannheim, Heidelberg University, Mannheim, Germany

ELN Foundation Weinheim, Germany