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:Moreover, the redistribution of FABP2 from the apical region to the entire cytoplasm after fat feeding pointed to the involvement of FABP2 in the intracellular binding, transport, and metabolism of FFA (3).
Category: