Dear editor, Adverse events are captured more accurately during the conduct of a randomised trial1 than when an audit is performed and reported retrospectively.2 As observed in our study, the majority of adverse events were encountered beyond the 4-week time frame …

中文翻译：

---

致编辑的信

尊敬的编辑，进行随机试验1所发生的不良事件要比进行审核和进行回顾性报告更为准确。2正如我们的研究所观察到的那样，大多数不良事件都是在4周的时间范围内发生的……