title: Comparing apples with pairs.
authors.affiliation: Department of Biostatistics, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC, USA.
authors.forename: Shrikant I
authors.initials: SI
authors.lastname: Bangdiwala
mesh_terms: D016009:Chi-Square Distribution; D006801:Humans; D016555:Matched-Pair Analysis; D018709:Statistics, Nonparametric