NCIt definition : The value which has an equal number of values greater and less than it.;
Alternative definition : NCI-GLOSS: A statistics term. The middle value in a set of measurements.; CDISC-GLOSS: The middle value in a data set; that is, just as many values are greater
than the median and lower than the median value. (With an even number of values, the
conventional median is halfway between the two middle values.); CDISC: The middle value in an ordered set of values. In the case of an even number
of values, it is the average of the two middle values.; MRCT-Ctr: The middle number in a set of numbers when listed in order from lowest to
highest. (https://mrctcenter.org/glossaryterm/median/);