1. Travis WD, Brambilla E, Muller-Hermeink HK, Harris CC, editors. WHO classification of tumours. Pathology and gentics of tumours of the lung, pleura, thymus and heart. 3rd ed. Lyon: IARC; 2004.
2. Travis WD, Brambilla E, Burke AP, et al. WHO classification of tumours of lung, pleura, thymus and heart. 4th ed. Lyon: IARC; 2015.
3. Noronha V, Dikshit R, Raut N, et al. Epidemiology of lung cancer in India: focus on the differences between non-smokers and smokers: a single-center experience. Indian J Cancer. 2012;49:74–81.
4. Krishnamurthy A, Vijayalakshmi R, Gadigi V, Ranganatha R, Sagar TG. The relevance of “nonsmoking-associated lung cancer” in India: a single-center experience. Indian J Cancer. 2012;49:82–8.
5. Travis WD, Brambilla E, Noguchi M, et al. International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society: international multidisciplinary classification of lung adenocarcinoma. J ThoracOncol. 2011;6:244–85.