1. Axelsson, B., Petersen, U. and Wiltz. H.J.,Digital skeletal radiography: Reduction of absorbed dose by adaptation of exposure factors and image processing, Acta Radiol., 42:592–598, 2001.
2. Commission of the European Communities,European guidelines on quality criteria for diagnostic radiographic image, EUR 16250 EN, CEC, Brussels, 1996.
3. Dobbins, J. T., Rice, J. J., Beam, C. A. and Ravin, C. E.,Threshold perception performance with computed and screen film radiography: Implications for chest radiography, Radiology, 183:179–187, 1992.
4. Freedman, M. and Steller, D.,Digital radiography of the musculoskeletal system: The optimal image, J. Digit. Imaging, 8:37–42, 1995.
5. Huda, W., Slone, R. M., Belden, C. J., Williams, J. L., Cumming. W. A. and Palmer, C. K.,Mottle on computed radiographs of the chest in paediatric patient, Radiology, 199:249–252, 1996.