Pathomorphology of EEC and the peri carcinoma region were observed in 109 cases.

对109例早期食管癌及癌周病变进行病理观察。

Methods Peri-implantitis was treated using four methods (1)essential treatment, (2)gingivectomy, (3)flap operation, (4)guided bone regeneration(GBR).

(1)常规治疗，(2)眼切术，(3)翻瓣术，(4)引织再生术。

By music nursing combined with dredging psychology in peri-operation period, the psychological anypnia, low emotion, actuation and nevous anxiety before operation were improved.

通过对围手术期的乐护理加心理疏，改善术前、绪低落、易激动烦乱、紧张不安焦虑的心理。

Public transient noncom-munity water systems provide water in places where people do not remain for long peri-ods, such as campgrounds and service stations.

公共的暂时性非集体供水系统向不长期居住的地方供水，例如营区和服务站。