About Meet the team Trustees David Liu David Liu A graduate from Sydney University, with a master of philosophy in bioengineering as well as a masters from the open university in business administration, David is a retired fellow in obstetrics and gynaecology, with particular interest in prenatal diagnosis and high risk pregnancy. A pioneer in the prenatal diagnostic technique of chorionic villus sampling, he was previously a senior lecturer (associate professor level) at Nottingham University and obtained a doctorate in medicine during his tenure. Following that, David became the Clinical Director at the City Hospital for more than twelve years. He joined our Board in 2014.