Weber, Richard W Outdoor aeroallergen sampling: not all that simple. [electronic resource] - Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology Jun 2007 - 505-6 p. digital Publication Type: Comment; Editorial ISSN: 1081-1206 Standard No.: 10.1016/S1081-1206(10)60726-0 doi Subjects--Topical Terms: Allergens--analysisEnvironmental Monitoring--instrumentationParticulate Matter--analysis