- Correspondence to Dr Pui Hing Chau, School of Nursing, The University of Hong Kong, Hong Kong, China;
- Received October 23, 2017
- Revised March 12, 2018
- Accepted March 13, 2018
- First published March 26, 2018.
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.