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:Putative novel MLVA profiles were given numerical designations, from MLVA-0027 onwards, to follow on from the known 26 MLVA types (MLVA-A to MLVA-Z) [7].
Category: