- Correspondence to Mr Matthew Peter Hibbert, Public Health Institute, Liverpool John Moores University, Liverpool L2 2QP, UK;
- Received December 11, 2018
- Revised February 25, 2019
- Accepted March 24, 2019
- First published April 12, 2019.
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.