Figure 1.

Classification of allergic rhinitis according to symptom duration and severity. Adapted from Small et al., 2007 [1], Bousquet et al., 2008 [5]

Small and Kim Allergy, Asthma & Clinical Immunology 2011 7(Suppl 1):S3   doi:10.1186/1710-1492-7-S1-S3