Fokkens W, Lund V, Bachert C, Clement P, Helllings P, Holmstrom M, Jones N, Kalogjera L, Kennedy D, Kowalski M, Malmberg H, Mullol J, Passali D, Stammberger H, Stierna P
Academic Medical Centre, ENT, Amsterdam, The Netherlands.
Allergy. 2005 May;60(5):583-601. doi: 10.1111/j.1398-9995.2005.00830.x.