. 2018 Oct 18;2018:5798684. doi: 10.1155/2018/5798684
Copyright © 2018 A-Yeong Kim et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 9.
The number of errors according to error types.