Simona E Budulac, Dirkje S Postma, Pieter S Hiemstra, Lisette IZ Kunz, Mateusz Siedlinski, Henriette A Smit, Judith M Vonk, Bea Rutgers, Wim Timens, H Marike Boezen, the Groningen Leiden Universities Corticosteroids in Obstructive Lung Disease (GLUCOLD) study group
Respir Res. 2010; 11(1): 60. Published online 2010 May 20. doi: 10.1186/1465-9921-11-60