In this paper, the effects of different net-bag light mediums on the roofing ratio, the number of roots, and the height of the cuttings were studied by the design of orthogonal test, as well as the effects of different cutting-surface types on the rooting ratio, the results were showed: the rice husk and wood chips as netbag light midiums was optimal for root regeneration.

Objective To investigate the application of under-eyebrow incision on blepharochalisis and crow\'s-feet,and provide evidence for its clinical use.

Objective: To investigate the causes and preventive measures of injuring submandibular branch of facial nerve in operation with submandibular incision.

Methods The data of 100 cases with spontaneous pneumothorax were analyzed,including 50 cases using minimally invasive surgery(35 video-assisted thoracic surgery,of which 15 of limited axillary thoracotomy),and 50 cases using traditional surgery.