1. Berger AJ. Control of breathing. In: Murray JF, Nadel JA, editors. Textbook of respiratory medicine. 3rd ed. Filadelfia, PA: Saunders; 2000. p. 179–96.
2. Decramer M. The respiratory muscles. In: Fishman AP, et al., editors. Pulmonary diseases and disorders. 3rd ed. New York: McGraw-Hill; 1998. p. 63–71.
3. Griese M. Pulmonary surfactant in health and human lung diseases: state of the art. Eur Respir J. 1999;13:1455–76.
4. Levitzky MG. Pulmonary physiology. 8th ed. New York: McGraw-Hill; 2013.
5. Lumb A. Nunn’s applied respiratory physiology. 7th ed. London: Elsevier; 2010.