Smith, J, Schelfhout, J, Nguyen, AM, Birring, SS, Bacci, ED, Vernon, M, Muccino, DR, La, R C & Smith, JA 2022, ' Validation and Meaningful Change Thresholds for an Objective Cough Frequency Measurement in Chronic Cough. ', Lung, vol. 200, no. 6, pp. 717-724 . https://doi.org/10.1007/s00408-022-00587-2