Objective To evaluate the necessary of peripheral iridectomy ( PI ) in cataract extraction and trabeculectomy surgeries.目的探讨周边虹膜 切除 术在白内障合并青光眼联合手术中的必要性....
两个非等位基因影响同一性并能增强彼此的效应.Two nonallelic genes affect the same character and enhance each other's effect.WTO体系 矛盾的斗争性和同一性是WTO体系矛盾的基本属性和基本关系.Belligerence and identity are basic attributes and relations of the WTO system....