Dr Mary Lei had her professional training in King’s College London, Imperial College Healthcare and Guy’s and St Thomas’NHS Foundation Trusts. Dr Lei has been a consultant clinical oncologist specialising in the treatment of head and neck and thyroid tumours at Guy's and St Thomas' NHS Foundation Trust since 2011. Currently, she is the lead for the clinical oncology radiotherapy research and development (R&D) group, also leads research and development for the network thyroid cancer team. Her research interests include IMRT, novel therapies and predictive biomarkers in head and neck cancer. She is collaborating with colleagues in King's Health Partners on her work in this area.

• M.D PhD，Professor
• Follow of Royal College of Radiologists
• Lead for the Clinical Oncology Radiotherapy R&D Group
• Lead for the Thyroid Cancer R&D Group at Guy’s & St Thomas’NHS Trusts