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:However, not every patient has access to support fromAboriginal and Torres Strait Islander-specific staff as these roles are not available in many locations throughout Australia.(6,16,68,69) In terms of managing symptoms, functional impairments and side-effects, some Aboriginal and Torres Strait Islander patients with experience of cancer reported a limited understanding of clinical notions of pain relief and cultural concerns can impact pain management.
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