To evaluate the effect of excision of the fistulous tract in the treatment of congenital lacrimal sac fistula.
目的评估泪囊瘘摘除术治疗先天性泪囊瘘的效果。
2
The double pylorus is a rare condition consisting of fistulous communication between the gastric antrum and the duodenum.
双幽门是一种较少见的情形，是由胃之前庭与十二指肠之间因廔管形成沟通所组成。
3
Objective To observe the clinical effects of one off and traditional methods of root canal therapy in primary teeth with fistulous chronic periapical periodontitis.