Khalid El Bairi is the founder of The Cancer Biomarkers Working Group, Oujda, Morocco. He has published many peer-reviewed articles in the field of predictive and prognostic cancer biomarkers to improve survival outcomes in several WoS and Medline-indexed journals. His research focuses particularly on biomarkers for gynecological cancers such as ovarian cancer. He is currently a member of the board of various international scientific societies, and an editor and reviewer for more than 35 journals. He is also highly interested in teaching evidence-based medicine, clinical research methods, and publishing ethics to medical and PhD students.