Cigarette warning labels are among the most widespread policy initiatives implemented to educate smokers
Charlotta Pisinger, Nina Godtfredsen, Anne Mette Bender, A conflict of interest is strongly associated with tobacco industryfavourable results, indicating no harm of e-cigarettes, Preventive Medicine, Volume 119, 2019, Pages 124-131, ISSN 0091-7435, Harumitsu Suzuki, Naoki Aono, Yan Zhang, Kuniko Yuri, Maggy Audrey Murielle Bassole Epse Brou, Shigeki Takemura, Aya Higashiyama, Takahiro Tabuchi, Akira Fujiyoshi, Comparison of Publications on Heated Tobacco Products With Conventional Cigarettes and Implied Desirability of the Products According to Tobacco Industry Affiliation: A Systematic Review, Nicotine & Tobacco Research, Volume 26, Issue 5, May 2024, Pages 520526, Tobacco Tactics
However the media pounces with abject glee on any negative study that any backwater university of Big Tobacco funded research comes out with peer reviewed or not
You will be able to find the measurements and associated conversions there