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 in keeping with the findings of Nishikawa et al [24] and suggest that the prophylactic phenylephrine infusion may be considered relatively safe with respect to its effect on hypertension and bradycardia despite the use of a high cumulative dose at the infusion rate of 100 μg/min.
Category: