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:The FE model predicted that the piston stapes prosthesis implantation would affect the RW membrane displacements, which is consistent with the experimental data reported by Wysocki et al. (2011) and Stenfelt et al. (2004b).
Category: