L. Tzivian holds a PhD in Epidemiology and Health Evaluation, and is a certified Epidemiologist, Head of Epidemiological Projects by the German Society for Epidemiology and German Society for Medical Informatics, Biometry and Epidemiology. Lilian specialized in methodological and statistical problems of human-related studies, particularly in environmental exposures, mental and cognitive health, and quality of life. She is a professor, the head of the Academic Master's program in Epidemiology and Medical Statistics at the Faculty of Medicine and Life Sciences of the University of Latvia. Lilian is the author of more than 50 scientific publications in highly impacted scientific journals, four book chapters, and more than 70 conference papers.