1. Adams, F. H., Towers, B., Osher, A. B., Ikecami, M., Fujiwara, T., Nozaki, M.: Effects of tracheal instillation of natural surfactant in premature lambs. I. Clinical and autopsy findings. Pediat. Res.12, 841?848 (1978)
2. Avery, M. E., Mead, J.: Surface properties in relation to atelectasis and hyaline membrane disease. Am. J. Dis. Child97, 517 (1959)
3. Blaton, V., Declercq, B., Vandamme, D., Soetewey, F., Peeters, H.: The human plasma lipids and lipoproteins under influence of EPL-therapy. Biochemical and clinical aspects of essential phospholipids, H. Peeters (ed.). Berlin-Heidelberg-New York: Springer 1976
4. Chu, J., Clements, J. A., Cotton, E. K., Klaus, M. H., Sweet, A. Y., Tooley, W. H., with the assistance of Bradley, B. L., Brandorff, B. A.: Neonatal pulmonary ischemia. Part I: Clinical and physiological studies. Pediatrics40, 709?766 (1967)
5. Clements, J. A.: Surface tension of lung extracts. Proc. Soc. exp. Biol.95, 170 (1957)