[Research in pediatric hematology [Germany, 1970-2000]].

Professor Riehm was not only an excellent pediatric oncologist, but also an excellent hematologist. He was a mentor also for young scientists who were interested in hematological research as his/her main focus. In the 1970s he has promoted research in coagulation disorders, during 1980s he supported the investigation on hematopoetic growth factors. During the 1990 s he was one of the first in Europe who have used hematopoietic growth factors as a supportive therapy in the protocol ALL-BFM and has also helped to set up the International Registry for Severe Chronic Neutropenias [SCNIR] in his Department. The sense of the top research directions of the time distinguishes him not only as a pioneer of the leukaemia therapy studies, but also as a pioneer in hematology. He created the environment in which research could blossom.