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:Certainly, patients may exhibit leakage on angiography (for example leakingmicroaneurysms in diabetic retinopathy), but no fluid accumulation within or below the retina as a result of compensatory removal of fluid by the retinal pigment epithelium (RPE) [14].
Category: