Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:Even though chyle has been defined as a noninflammatory fluid, inflammation is part of themechanism responsible for the presence of this type of fluid in pleural and peritoneal cavities as in other forms of serositis associated in SLE [3].
Category: