He says there is no standardized method for collecting national statistics about such medical care problems.

他表示，收集如医疗事故等全国统计数据时并没有标准化的方法。

Using only that more standardized research method wasn't as predictable as listening to the vocal expressions.

只使用更加标准化的研究方法并不像聆听声音所表达出来的内容那样有可预见性。