为比较液氮冷冻疗法对多种皮肤病的治疗效果，377例皮肤良性肿瘤及慢性限局性皮肤病进行了疗效观察。
The curative effects of cryotherapy curing 377 cases of patients with skin benign tumor and chronic limited dermatosis was observed.
液氮接触冷冻疗法是治疗慢性肥厚性鼻炎的一种理想方法 ，操作简单 ，痛苦较少 ，费用较低。
The contactive cryotherapy using liquid nitrogen is a satisfying method to treat chronic hypertrophic rhinitis, simple operation and with less misery, smaller expense.
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