?二尖瓣瓣叶脱垂

... Bioglass with or without autogenous particulate bone was used for the repair of cleft of process of 20 cases. 单纯应用倍骼生以及倍骼生复合自体颗粒骨修复齿槽突裂20例。 prolapse of mitral leaflets 二尖瓣瓣叶脱垂 The man cleft a block of wood in two with an axe. 那人用斧头把一块木头劈成两半。 ...