Αλλεργίες: Ποια είδη υπάρχουν και πώς αναγνωρίζονται;

How Do You Know If You Have Allergies? https://www.verywellhealth.com/how-do-you-know-if-you-have-allergies-5202927

Allergies: Overview https://www.ncbi.nlm.nih.gov/books/NBK447112/

Allergies https://www.nhs.uk/conditions/allergies/

Allergies https://my.clevelandclinic.org/health/diseases/8610-allergies