Bell CF, Ajmera M, Meyers J. Retrospective analysis of the burden of illness of eosinophilic granulomatosis with polyangiitis (EGPA) versus asthma in commercially insured US patients. Cureus J Med Science. 2023 Jul 21;15(7):e42241. doi: 10.7759/cureus.42241
Roberts J, Price J, Nelson LM, Burchinal M, Hennon E, Barnes B. Receptive vocabulary, expressive vocabulary, and speech production of boys with fragile X syndrome in comparison to boys with Down syndrome. Am J Ment Retard. 2007 May 1;112:177-93.