Key references: Classification of allergic rhinitis

  • Bousquet J, Van Cauwenberge P, Khaltaev N, Aria Workshop Group, World Health Organization Allergic rhinitis and its impact on asthma. J Allergy Clin Immunol 2001;108(5 Suppl):S147–334. https://www.ncbi.nlm.nih.gov/pubmed/11707753