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:These results resembled those of the previous report that the Taiwan clone (SCCmecVT-ST59-spa t437 or t441-pvl+) with resistance to erythromycin and tetracycline constituted most of the pvl+ CC59 CA-MRSA strains found in Western Australia [49].
Category: