Figure 1. A) Distribution of number of symptoms for the allergens associated to 50 or more. B) Distribution of number of allergens for the symptoms associated to 50 or more. Note that the same term in different resources could lead to slightly different results due to the different synonyms annotated in each resource, which affects the bibliographic searches (e.g. “hypersensitivity” in HPO (HP:0041092) and in MeSH (D006967).