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:Hoffstaedter et al. (2013) identified anterior middle cingulate cortex (aMCC) bilaterally through a convergence of resting-state fMRI and meta-analytic connectivity modeling (MACM) results.
Category: