References
- Singh , S. J. et al., 2014. An official systematic review of the European Respiratory Society/American Thoracic Society: measurement properties of field walking tests in chronic respiratory disease. European Respiratory Journal, December, 44(6), pp. 1447-1478.
- Holland, A. E. et al., 2014. An official European Respiratory Society/American Thoracic Society technical standard: field walking tests in chronic respiratory disease. European Respiratory Journal, December, 44(6), pp. 1428-1446.