Doctor of Medicine, University Freiburg, 1960. Doctor of Philosophy, University Münster, 1970.
Resident in medicine, U. Münster, 1963-1965; assistant professor, U. Münster, 1965-1970; attending physician in medicine, U. Münster, 1970-1971; professor medicine and hematology, U. Münster, since 1971; head leukemia research section, U. Münster, since 1994. Chairman German AML Cooperative Group, since 1978.
Fellow American Society Hematology, American Society Clinical Oncology, American Association for Cancer Research.
Married Edith Reis; children: Thomas, Wolfgang, Nikolaus.