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. 2018 Feb 21;7(1):1440132. doi: 10.1080/20013078.2018.1440132

Table 4.

Passive cutaneous anaphylaxis (PCA) test.

  PCA reaction
Group Negative Positive
PBS (N = 5) 5 0
1.5 μg/shot (N = 5) 5 0
150 μg/shot (N = 5) 5 0

PCA reaction was scored as positive if the bluing was larger than 3 mm in diameter.