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:…is consistent with the currently-held notion that dsRNA targets the gene-specific destruction of mRNA in a wide variety of eukaryotic cells (Fire et al., 1998; Tabara et al., 1998; Tabara et al., 1999; Sanchez-Alvorado and Newmark, 1999; Grishok et al., 2000; Boscher and Labouesse, 2000;…
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