If not in silent mode, these errors cause a diagnosticerror message and OPTARG is unset.
如果不是在静默模式，则这些错误将导致一条诊断错误消息而OPTARG不会被设置。
2
A message will appear if the database was generated; otherwise a diagnosticerror will be shown.
生成数据库后将会显示一条消息，否则显示一个诊断错误。
3
Developed by Pat Croskerry, a physician known for his research on the role of cognitive error in diagnosis, it uses a list of 50 different types of bias that may lead to diagnosticerror.