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 also consistent with earlier data suggesting that when DNA synthesis is inhibited in animal cells, additional replication origins fire that otherwise remain dormant (Ockey and Saffhill 1976; Taylor 1977; Francis et al. 1985; Painter 1985; Griffiths and Ling 1987; Anglana et al. 2003; Gilbert 2007).
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