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:In accordance with previous results obtained in our laboratory and by other groups, we have observed that the limited access protocol leads to the development of fat-bingeing behaviors (Corwin et al., 1998; Corwin, 2004; Wojnicki et al., 2008; Blanco-Gandia et al., 2017).
Category: