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:Our results are in agreement with those from others, who showed that a few specialized colons are responsible for the majority of S. aureus mastitis cases (Kapur et al., 1995; Akineden et al., 2001; Mork et al., 2005).
Category: