히스타민과 생리식염수를 양성 및 음성 대조로 사용하였으며 15분 후에 팽진의 크기를 측정하여 3 mm 이상인 경우를 양성으로 하였다.
Histamine and physiological saline were used as positive and negative controls, plus the size of this wheal was measured after a quarter-hour, and the case of 3 mm or more ended up being considered positive.