背景与目的：PACU是由于人体受寒冷刺激后迅速出现红斑、风团伴瘙痒等表现的一类特殊类型的荨麻疹。
Backgrand and Aims PACU is a specific type of urticaria which characterized by the rapid onset of pruritus, erythema, and swelling after a cold stimulus.
根据患者的瘙痒程度、风团数量及大小等进行临床疗效评价。
Their clinical effects were evaluated according to itch degree, numbers and sizes of urticaria.
根据患者的瘙痒程度、风团数量及大小等进行临床疗效评价。
Their clinical effects were evaluated according to itch degree, numbers and sizes of urticaria.
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