Correlation of spirometry findings and post-six-minute walk test oxygen desaturation in chronic simple silicosis patients with age, duration of silica exposure, smoking pack years, occupation and mean pulmonary artery pressure. Monaldi Arch Chest Dis [Internet]. 2024 Sep. 16 [cited 2025 Jun. 12];. Available from: https://www.monaldi-archives.org/macd/article/view/3094