1. P. J. Scheuer, in “Liver Biopsy Interpretation,” Bailliere Tindall, London, 1980, pp. 36–59.
2. J.P. Bretaudiere and T. Spillman, in “Methods of Enzymatic Analysis,” 3d Ed., ed. by H. U. Bergmeyer, Verlag Chemic Gmbh, D-6940 Weinheim, Germany, 1984, pp. 75–82.
3. R. A. Fisher, in “Statistical Methods for Research Workers,” 14th Ed., ed. by Oliver and Boyd, Edinburgh, Scotland, 1970, pp. 140–142.