Maintenance work on the ZORA databases is scheduled for Wednesday 22 May 2019 from 20:00-22:00. During this period ZORA and JDB will not be available. Thank you for your understanding.
Rosenlund, H; Bergström, A; Alm, J S; Swartz, J; Scheynius, A; van Hage, M; Johansen, K; Brunekreef, B; von Mutius, E; Ege, M J; Riedler, J; Braun-Fahrländer, C; Waser, M; Pershagen, G; PARSIFAL Study Group (2009). Allergic disease and atopic sensitization in children in relation to measles vaccination and measles infection. Pediatrics, 123(3):771-778.