Since 1997, Dr. Gallus has been a researcher at the former Department of Epidemiology of IRFMN. In 2006, he was promoted as the head of the Unit of Epidemiology for Clinical Research and in 2017 as the head of the Laboratory of Lifestyle Epidemiology at the Department of Environmental Health Sciences of IRFMN. In 2017, he was selected as the Honorary Associate Professor at the University of Nottingham, UK. Dr. Gallus has gained expertise in epidemiology, public health, biostatistics and computation. Since 2001, his main fields of interest include the epidemiology of smoking in Italy and Europe, including monitoring of smoking prevalence and trends in Italy, economics and determinants of smoking initiation and cessation; the monitoring of the use of electronic cigarettes and heated tobacco products in Italy; the design, data managing and statistical analyses of case-control studies on the association between several risk factors (including in particular tobacco smoking, alcohol drinking, diet and obesity) and the risk of cancer, coronary heart disease and other chronic conditions, including tinnitus; the analyses of occupational cohort studies; and the conduction and analysis of observational clinical studies. Dr. Gallus participated as the Principal Investigator or Work-Package leader in various national and international projects, including at least six collaborative projects on tobacco control or the epidemiology of tinnitus, supported by the European Commission.