The Natural history of chronic bronchitis and emphysema an eight-year study of chronic obstructive lung disease in working men in London - Fletcher, Charles (Oxford : Oxford University Press, 1976)
Includes index.
Bibliography: p. 258-268.
Keywords: Bronchitis -- England -- London -- Epidemiology; Emphysema, Pulmonary -- England -- London -- Epidemiology; Pulmonary function tests