Fig. 2From: An update on molecular cat allergens: Fel d 1 and what else? Chapter 1: Fel d 1, the major cat allergenSpecific IgE levels (≥ 0.3 ISU-E) to cat allergens in children with (white box plots) or without (gray box plots) symptoms to cat at 4, 8, and 16 years of age. From Asarnoj et al. [58] reprinted with permission from the publisherBack to article page