1. Non-response in a cross-sectional study of respiratory health in Norway. Issue 1 (6th January 2016) Authors: Abrahamsen, Regine; Svendsen, Martin Veel; Henneberger, Paul K; Gundersen, Gølin Finckenhagen; Torén, Kjell; Kongerud, Johny; Fell, Anne Kristin Møller Journal: BMJ open Issue: Volume 6:Issue 1(2016) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗