Kittens like to play with string and yarn, but if you don 't watch them they may accidentally swallow some of it, which can lead to gastrointestinal obstruction and a need for surgery.
小猫喜欢玩绳子和纱线，但如果不小心看管，它们也许会吞下一些绳线，从而导致肠道阻塞甚至需要做手术。
2
Objective To analyse the methods and effects of laser surgery for obstruction of lacrimal duct.
目的：分析泪道激光治疗泪道阻塞的方法和效果。
3
Conclusions the key to the treatment of pyonephrosis by kidney-sparing surgery is early diagnosis, timely drainage and relief of obstruction.