Keyword frequency analysis showed that the 10 most frequently used keywords were ‘asthma’, ‘allergy’, ‘child(ren)’, ‘IgE’, ‘(allergic) rhinitis’, ‘epidemiology’, ‘food allergy’, ‘(allergic) contact dermatitis’, ‘psoriasis’, ‘cytokines’, and ‘pruritus (itch)’ (Figure 2A). The gene discussed is IGHE; the disease is food allergy.