McCann E, Peterson KA, Whalley D, Qin S, Tilton ST, Kamat S, Sun X, Dellon ES. Psychometric evaluation of the Dysphagia Symptom Questionnaire for adults and adolescents with eosinophilic esophagitis. J Allergy Clin Immunol Glob. 2024 Jul 16;3(4):100302. doi: 10.1016/j.jacig.2024.100302
Mosconi M, Nelson LM, Hooper SR. Confirmatory Factor Analysis of the NEPSY for younger and older school-age children. Psychol Rep. 2008 Jun;102(3):861-6.