Gregory Cheng, MD, PhD is the deputy director of the Dr. Stanley Ho Medical Development Foundation, Macau. He is the former head of division of Hematology at the Chinese University of Hong Kong. He earned his medical degree and PhD degree from the University of Toronto in 1978 and 1989 respectively. His clinical practice and research focus on immune thrombocytopenia, deep vein thrombosis, transfusion medicine and hematologic malignancies, such as acute and chronic leukemia, myelodysplastic syndromes, myeloproliferative disorders, lymphomas, and myeloma. His research has resulted in publications in peer-reviewed journals such as the New England Journal of Medicine, Lancet, JAMA, Blood, and BMJ.