. 2017 Jul-Aug;33(4):860–865. doi: 10.12669/pjms.334.12560
Copyright: © Pakistan Journal of Medical Sciences
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fig. 1.
External electronic classroom distracters.