Master's tutor at Peking University Law School; Member of the Biomedical Ethics Committee of Peking University; Member of Ethics Committee of Peking University Cancer Hospital; Member of the Medical Research Ethics Committee of Peking University Third Hospital; Member of the Medical Ethics Committee of China Anti-Cancer Association; Member of the Standing Committee of the Monitoring and Evaluation; Committee of Assisted Reproductive Technology of China Maternal and Child Health Association; Member of the Medical and Health Special Committee of Beijing Lawyers Association.