1. Lung cancer in never smokers: a review.
   Janakiraman Subramanian et al, 2007, J. Clin. Oncol. CrossRef
2. Fuel for Life: Domestic Cooking Fuels and Women’s Health in Rural China
   Peng Nie et al, 2016, IJERPH CrossRef
3. Lung Cancer and Indoor Pollution from Heating and Cooking with Solid Fuels
   Jolanta Lissowska et al, 2005 CrossRef
4. Meta-Analysis and Systematic Review in Environmental Tobacco Smoke Risk of Female Lung Cancer by Research Type
   Xue Ni et al, 2018, IJERPH CrossRef
5. Chronic Obstructive Pulmonary Disease Is Associated with Lung Cancer Mortality in a Prospective Study of Never Smokers
   Michelle C. Turner et al, 2007, Am J Respir Crit Care Med CrossRef
6. Pulmonary Tuberculosis and Risk of Lung Cancer: A Systematic Review and Meta-Analysis
   Soo Young Hwang et al, 2022, JCM CrossRef