Dr Yap completed his medical degree at the National University of Singapore. He then underwent further clinical training in Internal Medicine and Haematology at the National University Hospital. He obtained his fellowship from the Royal College of Pathologists (Haematology) while spending a year doing epidemiology and statistics as a researcher at the Department of Epidemiology, Leiden University Medical Centre, Netherlands. His clinical interest is in the treatment of benign haematological conditions with a special focus on thrombosis and haemostasis. His research interests include the epidemiological link between arterial and venous thrombosis, bleeding disorders and medical education. Dr Yap was the past President of the Singapore Society of Haematology. He is passionate about medical education and is actively involved in undergraduate and post-graduate medical education. He was previously the Haematology residency programme director and core faculty member of the Medicine residency programme at the National University Hospital. He is also an adjunct Associate Professor with the Yong Loo Lin School of Medicine, National University of Singapore, as well as clinical teacher for Lee Kong Chian School of Medicine, National Technological Unversity, Singapore.