Jiménez-Ruiz, C.A., and K.O. Fagerström. “Smoking Cessation Treatment for COPD Smokers: The Role of Pharmacological Interventions”. Monaldi Archives for Chest Disease 79, no. 1 (November 26, 2015). Accessed December 21, 2024. https://www.monaldi-archives.org/macd/article/view/106.