The use of erythromycin as prophylaxis in chronic bronchitis: a cohort study from general practice.
A cohort of patients with chronic bronchitis were invited to take erythromycin prophylactically to reduce the number of exacerbations of their disease. The cohort was followed for three years. The bacteriological nature of the exacerbation together with the patient acceptability were recorded.
Bronchitis↗