- Correspondence to Dr Osman Hassan Ahmed, Faculty of Health and Social Sciences, Bournemouth University, Bournemouth BH1 3LT, UK;
- Accepted March 12, 2017
- First published March 22, 2017.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.