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Focus and Cognitive Interviewing Flowchart. Focus interview transcripts of pediatric patients with EoE and their parents were used to develop the items and domains for the PedsQL™ EoE Module [4]. Cognitive interviewing was conducted in the current study with separate cohorts of pediatric patients and their parents in the 5–7, 8–12 and 13–18 year old age groups, while parent proxy-reports were also obtained in the 2–4 year old age group.
