1. International Agency for Research on Cancer. Tobacco smoking. Vol 38. IARC Monogr Eval Carcinog Risk Chem Hum Lyon, France: IARC, 1986: 421. Available from: http://monographs.iarc.fr/ENG/Monographs/vol1-42/mono38.pdf
2. US Surgeon General. The health consequences of smoking - 50 years of progress: a report of the Surgeon General. Vol Atlanta, Georgia: US Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2014: 944. Available from: https://www.ncbi.nlm.nih.gov/books/NBK179276
3. Systematic review with meta-analysis of the epidemiological evidence in the 1900s relating smoking to lung cancer
4. Estimating the effect of differing assumptions on the population health impact of introducing a Reduced Risk Tobacco Product in the USA
5. Meta-analysis in epidemiology, with special reference to studies of the association between exposure to environmental tobacco smoke and lung cancer: A critique