是故

Our literature review indicates that our patient the youngest one diagnosed with chondroblastoma in the talus.

本病例是一位十八个月大男婴，病灶位于左，较罕见，手术前诊断也较困难，加以分析讨论。

Pseudogout is sometimes confused with gout because the symptoms are similar; however, it is caused by calcium phosphate, not uric acid.

由于假痛风的症状与痛风相似，有时会混淆，不过，假痛风是由磷酸钙引起，而非尿酸。

The JOTA is a world-wide event, as a world-wide event we need a lot of helper to help us in order to have a successful JOTA.

国际电讯日是一项国际性活，要大量人力物力。