Yang, Huiqin
Llewellyn, Alexis
Walker, Ruth
Harden, Melissa
Saramago, Pedro
Griffin, Susan
Simmonds, Mark
Funding for this research was provided by:
This project was funded by the UK National Institute for Health Research (NIHR) health technology assessment programme (Project number 15/17/02)
Article History
Received: 23 November 2017
Accepted: 8 January 2019
First Online: 14 February 2019
Ethics approval and consent to participate
: No human subjects, human material, or human data were involved in this research, which is based on literature review.
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.