Konstantinos Farsalinos, MD, MPH, is a physician and senior researcher specialising in Public Health at the Universities of Patras and West Attica in Greece. He has conducted extensive research on smoking, tobacco harm reduction, and vaping since 2011, publishing over 90 studies and articles. Notably, he authored the first systematic review on the safety and risk profile of e-cigarettes in 2014; his research was influential in shaping the EU’s regulatory framework on vaping. In 2020, he was recognized as a Highly Cited Researcher for his significant impact in global science. During the pandemic, he published studies exploring the relationship between smoking, nicotine, and COVID-19.

Dr Brad Rodu is a professor of medicine and holds an endowed chair in tobacco harm reduction research at the University of Louisville, Kentucky USA. Since 1994 Rodu has authored 70 medical publications about tobacco, and he blogs at Rodu Tobacco Truth (http://rodutobaccotruth.blogspot.com/).