1. Interstitial lung diseases: an epidemiological overview;Demedts;Eur Respir J,2001
2. Comparison of registries of interstitial lung diseases in three European countries;Thomeer;Eur Respir J,2001
3. The epidemiology of interstitial lung disease;Coultas;Am J Respir Crit Care Med,1994
4. Idiopathic pulmonary fibrosis: diagnosis and treatment. International consensus statement. American Thoracic Society (ATS) and the European Respiratory Society (ERS);Am J Respir Crit Care Med,2000
5. International multidisciplinary consensus classification of the idiopathic interstitial pneumonias. Joint Statement;Am J Respir Crit Care Med,2002