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:…et al. (2003)
herbimycin A non-receptor type PTK 8–12 10 Leclerc et al. (1997) ERK Pathway CGP78850 competes for Grb2-SH2 0.043 30 Gay et al. (1999); de Lamirande and Gagnon (2002)
Sulindac sulphid Ras-Raf Interaction – 100 de Lamirande and Gagnon (2002) ZM336372 Raf, competitive inhibition 0.07–…
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