1. Hubbard R, Brantly M, Crystal RG. Proteases. In: The Lung. RG Crystal, JB West, editors. Scientific Foundations. Raven Press, New York 1991; 2:1763–1774.
2. Hubbard R, Crystal RG. Antiproteases. In: Crystal RG, West JB, editors. The Lung. Scientific Foundations. Raven Press, New York 1991; 2:1775–1787.
3. Senior R.M. Neutral Proteinases from Human Inflammatory Cells. Clinics Lab Med 1983; 3:645–666.
4. Hubbard R, Crystal RG. Vulnerability of the lung to proteolytic injury. In: The Lung. Crystal RG, West JB, editors. Scientific Foundations. Raven Press, New York 1991; 2:2059–2072.
5. Hunninghake G.W. et al. Cigarette Smoking and Lung Destruction: Accumulation of Neutrophils in the Lungs of Cigarette Smokers. Am Rev Respir Dis 1983; 128:833–838.