Figure 2From: An experimental model of rhinovirus induced chronic obstructive pulmonary disease exacerbations: a pilot studyIndividual lower respiratory tract symptoms. (A) Wheeze (p = 0.01). (B) Cough (p < 0.001). (C) Sputum production (p = 0.01). (D) Sputum quality (p = 0.19). (E) Shortness of breath (p = 0.82).Back to article page