completed his medical school in Germany and training for Hematology, Oncology and stem cell transplantation at leading universities in Germany (Heidelberg and Aachen). Until 2011 he was employed as senior consultant at university hospital in Aachen/Germany. Since 10/2011 he is appointed as senior consultant at KFSHRC-Jeddah where he has established and leading as Director the lymphoma program. He is appointed as adjunct Professor at Alfaisal University, College of Medicine. Prof. Dada has many publications in respected journals as Annals of Hematology, European Journal of Haematology and Expert Opinion on Biological Therapies. He is a member of the reviewer/editorial board of many reputable scientific journals with high impact factor.