Fraction is a CLINICAL INTERVENTION.

A set of exposures delivered or intended to be delivered to a PATIENT in the course of one visit to a radiotherapy room. The HELD OR CANCELLED indicator records those Fractions for which APPOINTMENTS have been made, but which did not take place.

Note: For technical reasons the radiotherapy MACHINE TYPE actually used for each EXPOSURE may differ from that indicated when the Fraction was planned.

This supporting information is also known by these names:

Context	Alias
plural	Fractions