Professor of Medical Oncology and Deputy Director of Lung Cancer Research Centre at Sun Yat-Sen University; Chief of the Department of Medical Oncology and Associate Director of the National Anti-Cancer Drug Clinical Research Centre at the Sun Yat-Sen University Cancer Centre in Guangzhou, China. Dr. Zhang also serves on the Board of the International Association for the Study of Lung Cancer, vice chairman of the Association of Rehabilitation and Palliative Care and vice chairman of both the Cancer Chemotherapy Association and Lung Cancer Association of the Guangdong Province, China.