d STB-47 January 1999 t .. Other STBs p gr34 Drawing Venn diagrams p sbe25 Assessing goodness-of-fit of age-specific ref. intervals p sbe26 Assessing influence of a single study in meta-anal. est. p sg99 Multiple regression with missing obs. for some variables p sg100 Two-stage linear constrained estimation p sg101 Pairwise comparisons of means, including the Tukey wsd p sg102 Zero-truncated Poisson and negative binomial regression p sg103 Within subjects (repeated measures) ANOVA, between subj.