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:In this context, it was also shown recently that cellular protein profiles can be inherited beyond cell cycle durations.(34) From a technical point of view, our approach avoids the requirement of chemical cell synchronization,(14,35) which may induce additional stress responses in cells, including the activation of apoptosis by the chemical compounds themselves.
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