据很多人所说，使用这项技术可以即时访问患者数据或处方详细信息，从而减少医疗错误。
By many accounts, the technology has helped reduce medical error by providing instant access to patient data or prescription details.
试图使用片段或者试图从不存在的键访问数据就会抛出异常，指出相关的错误。
Trying to use slicing or trying to access data from nonexistent keys throws exceptions, indicating the relevant error.
如果映射是错误的，就不可能正确地访问数据。
If the mapping is wrong, then you won't be able to access your data properly.
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