Impact of smoking history on postoperative complications after lung cancer surgery – a study based on 286 cases - Kozub, Mateusz; Gachewicz, Bartosz; Kasprzyk, Mariusz; Roszak, Magdalena; Gasiorowski, Lukasz; Dyszkiewicz, Wojciech (Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery, 2019)