Association Between Short-term Exposure to Ultrafine Particles and Mortality in Eight European Urban Areas.
Stafoggia M, Schneider A, Cyrys J, Samoli E, Andersen ZJ, Bedada GB, Bellander T, Cattani G, Eleftheriadis K, Faustini A, Hoffmann B, Jacquemin B, Katsouyanni K, Massling A, Pekkanen J, Perez N, Peters A, Quass U, Yli-Tuomi T, Forastiere F. Association Between Short-term Exposure to Ultrafine Particles and Mortality in Eight European Urban Areas. Epidemiology. 2017 03; 28(2):172-180.