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:(Meis-Kindblom et al. 1995; Antonescu et al., 2001), whereas LGFMS has been characterized as having a “low-grade” protracted clinical course with local recurrences and late metastasis (Evans, 1987, 1993).
Category: