REFERENCES
- Almèn, T. Acta radiol. (Stockh.) 1973, Suppl. 335, 216–222
- Almèn, T. Invest. Radiol. 1975, 10, 519–525
- Almèn, T. & Aspelin, P. Invest. Radiol. 1975, 10, 557–563
- Andersson, E. An Introduction to Multivariate Statistical Analysis, Chaps. II and V. Wiley, New York, 1972
- Behlolavek, D., Koch, H., Rösch, W., Schaffner, O., Maeder, H. H., Flory, J., Classen, M. & Demling, L. Endoscopy 1976, 8, 115–118
- Conover, W. J. Ann. Stat. 1973, 6, 1105–1125
- Daniel, C. & Wood, F. S. Fitting Equations to Data Chap. III. Wiley, New York, 1971
- Gonsette, R. E. Acta radiol. (Stockh.) 1973, Suppl. 335, 24–44
- Metrizamide, a non-ionic water-soluble contrast medium. Experimental and preliminary clinical investigations. Acta radiol. (Stockh.) 1973, Suppl. 335.
- Ruppin, H., Ammon, R., Ettl, W., Classen, M. & Demling, L. Endoscopy 1974, 6, 94–98
- Salvesen, S. Acta radiol. (Stockh.) 1973, Suppl. 335, 116–174
- Skalpe, I. O. & Amundsen, P. Radiology 1975, 115, 91–95
- Skalpe, I. O. & Amundsen, P. Radiology 1975, 116, 101–106
- Skalpe, I. O. & Torvik, A. Acta radiol. (Stockh.) 1973, Suppl. 335, 143–152
- Sverdrup, E. Laws and Change Variations. Chaps. VI, VII, and IX. North-Holland Publishing Company, Amsterdan, 1963
- Trägardh, B. Lynch, P. R. & Vinciguerra, T. Radiology 1975, 115, 59–62