Malhotra, Harinder S.; Perry, Caroline M.; Ormrod, Douglas - In: Disease Management and Health Outcomes 10 (2002) 1, pp. 55-70
The clinical course of chronic bronchitis is intermittently interrupted by acute exacerbations (AECB), especially during the winter months, characterised by an increase in cough, a change in the purulence and volume of sputum, or worsening of dyspnea. Although AECB can be caused by allergens,...