Professor Donald Leigh

- International Committee for Pre-implantation Genetic Diagnosis (PGDIS), Chair

- Former Chief Scientist of the Sydney IVF Centre, Director of PGD and Executive Committee of the Board

- Member of the Scientific Committee of the 14th International Congress of Preimplantation Genetic Diagnosis

- PGDIS designatedembryo biopsy and clinical geneticist training officer

- Selected into the "Southeast Asia Belt and Road Foreign Expert Team" introduction plan of the China Foreign Experts Administration in 2020-2021.