Objective: To evaluate the orthopedic effects of a new method to treat skeletal crossbite in the early mixed dentition. ......

目的 比较后牙双斜面导板矫治器(twin inclined plane device,TIPD)和面弓(Facemask,FM)治疗生长期骨性Ⅲ类错(牙合)的疗效.方法 ......

目的 评价应用头罩式无创正压通气(non-invasive positive pressure ventilation,NIPPV)治疗慢性阻塞性肺疾病急性加重(acute exac......

The World Health Association and many governmental agencies recommend the wearing of facemasks by the general public to ......

There is a lack of reported studies on how the long duration wearing of N95 respirators or surgical facemasks will affec......