C. Butler

Diaphragmatic changes in emphysema.

C. Butler, 2015, The American review of respiratory disease.

Lung surface area in various morphologic forms of human emphysema.

C. Butler, 2015, The American review of respiratory disease.

Antibiotic prescribing for discoloured sputum in acute cough/lower respiratory tract infection

H. Goossens, K. Hood, T. Schaberg, 2011, European Respiratory Journal.

Bronchitis and Emphysema

C. Butler, 1982 .