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 consistent to the findings of a recent study by Khannoon et al.43, where higher sliding friction was measured on subdigital scales in Ch. calyptratus in contact with a glass bead than on scales of the dorsal side of the feet.
Category: