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. 2011 Aug 10;6(8):e23357. doi: 10.1371/journal.pone.0023357

Figure 1. Illustration of four groups.

Figure 1

CTL: control group that received no stress, SGL: single stress group that received stress alone, EMP: empathy group that received stress in group with cage mates, and R-EMP: reversed empathy group that received stress with no-stress cage mates.