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Flowchart showing study protocol and visit procedures. Abbreviations: LCQ – Leicester Cough Questionnaire, SNOT-20 – Sinonasal outcomes-20 questionnaire, GERD-QOL – GERD Health-related Quality of Life questionnaire, ALQ – Asthma Life Questionnaire, LCM – Leicester Cough Monitoring, EBC – Exhaled Breath Condensate measurements.
