1. Spontaneous pneumothorax.;Killian,1968
2. Spontaneous interstitial emphysema of the lungs.;Hamman;Tr Assoc Am Physicians,1937
3. Spontaneous mediastinal emphysema.;Hamman;Bull Hopkins Hosp,1937
4. A note on the mechanism of spontaneous pneumothorax.;Hamman;Ann Intern Med,1939
5. Mediastinal emphysema.;Hamman;JAMA,1945