title: Reference values and standards for paired organs.
abstract: When estimating reference values for measurements on paired organs, the standard deviation for a single measurement can be obtained to a good approximation simply by ignoring the pairing. In practice, however, there are advantages in the use of conventional standards for pair means and differences.
authors.affiliation: Institute of Education, London University.
authors.forename: M J
authors.initials: MJ
authors.lastname: Healy
mesh_terms: D000715:Anatomy / Q000592:standards*; D012015:Reference Standards; D012016:Reference Values