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:Treatment with the general myosin inhibitor 2,3-butanedione monoxime (BDM) (Radford and White, 2011) reduced the number of flg22-induced FLS2-GFP endosomes by ;80% compared
with the control.
Category: