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Text:The findings of this study support the results of a previous, unpublished study in which patients were found to have hopes for a cure, symptom relief, information, and understanding.(11) In this study, the impact of patients’ problems on their ability to live normal lives and carry out routine daily activities is evident.
Category: