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:The high-resolution crystal structures of AChBP‚Äìneonicotinoid complexes with IMI and THIA reported here, and in earlier findings for an EPIoccupied AChBP crystal structure (4) and its nicotinic agonist relatives (11), are generally consistent with the results of photoaffinity labeling in a physiological condition with 5-azido-6chloropyridin-3-yl IMI, THIA, and EPI probes (12‚Äì14).
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