Lookup NU author(s): Professor Allyson Pollock,
This is the final published version of an article that has been published in its final definitive form by BMJ Publishing Group, 2018.
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Author(s): Pollock AM, Roderick P
Publication type: Article
Online publication date: 30/01/2018
Acceptance date: 26/01/2018
ISSN (print): 0959-8138
ISSN (electronic): 1756-1833
Publisher: BMJ Publishing Group
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