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Concentration of indoor allergens, (a) Der p 1 (b) Tropomyosin (c) Mite Group 2 (d) Blo t 5 (e) Der f 1 (f) Can f 1(g) Fel d 1 of dust samples from the bed (○), play Area (□), and sofa (∆) of allergic (open) and non-allergic (close) subjects. Red line represents the median of each group. Dotted lines represent the lower limit of detection of each allergen. Asterisk (*) represents significant difference of P-value < 0.05
