Spiropoulou, Agathi, Nicholas Zareifopoulos, Aggeliki Bellou, Konstantinos Spiropoulos, and Lazaros Tsalikis. “Review of the Association Between Periodontitis and Chronic Obstructive Pulmonary Disease in Smokers”. Monaldi Archives for Chest Disease 89, no. 1 (March 20, 2019). Accessed April 25, 2024. https://www.monaldi-archives.org/macd/article/view/1018.