Smoller, J. W.; Pollack, M. H.; Otto, M. W.; Rosenbaum, J. F.; Kradin, R. L. (1996). „Panic anxiety, dyspnea, and respiratory disease. Theoretical and clinical considerations”. American Journal of Respiratory and Critical Care Medicine. 154 (1): 6—17. PMID8680700. doi:10.1164/ajrccm.154.1.8680700.
Martinez, F. J.; De Oca, M. M.; Whyte, R. I.; Stetz, J.; Gay, S. E.; Celli, B. R. (1997). „Lung-volume reduction improves dyspnea, dynamic hyperinflation, and respiratory muscle function”. American Journal of Respiratory and Critical Care Medicine. 155 (6): 1984—1990. PMID9196106. doi:10.1164/ajrccm.155.6.9196106.
Leung, R.; Hill, P.; Burdon, J. (1996). „Effect of inhaled morphine on the development of breathlessness during exercise in patients with chronic lung disease”. Thorax. 51 (6): 596—600. doi:10.1136/thx.51.6.596.
Dejkuijzen, P. N. R.; M. Decramer (1992). „Steroid-induced myopathy and its significance to respiratory disease: a known disease rediscovered”. Eur. Respir. J. 5 (8): 997—1003. PMID1426209.
Smoller, J. W.; Pollack, M. H.; Otto, M. W.; Rosenbaum, J. F.; Kradin, R. L. (1996). „Panic anxiety, dyspnea, and respiratory disease. Theoretical and clinical considerations”. American Journal of Respiratory and Critical Care Medicine. 154 (1): 6—17. PMID8680700. doi:10.1164/ajrccm.154.1.8680700.
Martinez, F. J.; De Oca, M. M.; Whyte, R. I.; Stetz, J.; Gay, S. E.; Celli, B. R. (1997). „Lung-volume reduction improves dyspnea, dynamic hyperinflation, and respiratory muscle function”. American Journal of Respiratory and Critical Care Medicine. 155 (6): 1984—1990. PMID9196106. doi:10.1164/ajrccm.155.6.9196106.