- Correspondence to Dr Derek Willis, Severn Hospice, Apley Castle, Telford, Shropshire TF1 6rh, UK;
- Received July 7, 2015
- Accepted July 18, 2015
- First published September 1, 2015.
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.