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. 2013 Feb 20;8(2):e56938. doi: 10.1371/journal.pone.0056938

Figure 4. The level of physical contact with humans initiated by dog in both treatments.

Figure 4

Time spent in physical contact with person (median proportion of sample points/episode presented together with 95% confidence intervals) during the whole test procedure (episodes (Ep) 1–6) in treatment FS and in treatment SS. F = familiar person, S = stranger, SA = stranger A and SB = stranger B.