1. COPD in Helsinki, Finland: socioeconomic status based on occupation has an important impact on prevalence. Issue 6 (August 2013) Authors: Kainu, Annette; Rouhos, Annamari; Sovijärvi, Anssi; Lindqvist, Ari; Sarna, Seppo; Lundbäck, Bo Journal: Scandinavian journal of public health Issue: Volume 41:Issue 6(2013) Page Start: 570 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗