Yee Khong has research interests in diagnostic placental pathology and social and diagnostic aspects of the perinatal autopsy. Professor Khong was an invited expert to contribute to the chapter on placental pathology in the American College of Obstetricians and Gynecologists’s Taskforce on Neonatal Encephalopathy and Cerebral Palsy. He also recently convened an international collaboration to harmonise placental examination, nomenclature and definition of lesions (Amsterdam Placental Workshop Group). Professor Khong has been a tutor for the International Paediatric Pathology Association Advanced Course in 2001 and 2013, and the Update Course in 2015.