Psychometric evaluation of the Dysphagia Symptom Questionnaire for adults and adolescents with eosinophilic esophagitis by Eilish McCann, PhD, Kathryn A. Peterson, MD, Diane Whalley, PhD, Shanshan Qin, PhD, Sarette T. Tilton, PharmD, Siddhesh Kamat, MSc, Xian Sun, PhD, Evan S. Dellon, MD

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