He received a Ph.D. degree in genetic epidemiology from the Erasmus University Rotterdam (Netherlands). His research interests include the elucidation of genetic and environmental risk factors for human diseases, classification of genetic variants as pathogenic or benign for clinical genetic testing, and methodology in bioinformatics and genetic epidemiology. He conducted research on nasopharyngeal carcinoma at the Sun Yat-Sen University (China) and at the International Agency for Research on Cancer, World Health Organization (France). Currently, he is working on psoriasis, psoriatic arthritis, breast cancer, and head and neck cancer.