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:This finding is consistent with previous results demonstrating high probabilities for intralaminar connections from pyramidal neurons to FS interneurons (Thomson et al., 2002; Beierlein et al., 2003; Holmgren et al., 2003; Oswald et al., 2009; Otsuka and Kawaguchi, 2009; Xu and Callaway, 2009; Tanaka et al., 2011; Avermann et al., 2012), although it contrasts with results from rat visual cortex showing predominantly interlaminar excitation of FS interneurons in layer 2/3 (Dantzker and Callaway, 2000).
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