The authors describe various methods in determining reference intervals and use practical methods of calculating them, especially under less than ideal conditions. They present case histories to illustrate the practicalities and show the entirety of the decision-making process, emphasizing the univariate case. They cover population distribution, outliers, a single sample, the robust estimator, group-specific reference intervals, small sample sizes, the regression approach, transference, the medical heritage concept, and bad current practices. The CD-ROM includes data sets and other materials. Annotation ©2006 Book News, Inc., Portland, OR (booknews.com)