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:…because similar spatiotemporal networks are inferred in real fMRI data whether using spatial or temporal independent component analysis (ICA) (Calhoun et al., 2009), general linear model (GLM), seed-based (Whitfield-Gabrieli et al., 2009), or clustering approaches (Van Den Heuvel et al.,…
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