International variation in prevalence of rhinitis and its relationship with sensitisation to perennial and seasonal allergens
G. Weinmayr, F. Forastiere, S. K. Weiland, P. Rzehak, T. Abramidze, I. Annesi-Maesano, B. Björkstén, B. Brunekreef, G. Büchele, W. O. C. Cookson, E. von Mutius, R. Pistelli, D. P. Strachan
European Respiratory Journal Nov 2008, 32 (5) 1250-1261; DOI: 10.1183/09031936.00157807