Scans were reviewed by 3 readers. Patients were dichotomized according to the presence or absence of the spotsign. Clinical and radiological outcomes were compared between groups.
由3位阅片者对扫描结果进行评价，根据是否存在斑点征把患者分为两组，比较组间的临床和放射学结局。
2
There is no sign of any games and I only spot one child.
现场我只看到了一个孩子，也根本没有什么游戏的迹象。
3
The first sign of oral cancer is often a tiny white or red spot in the mouth, but the disease can be detected before a sore appears.