Tipping, Claire J.
Harrold, Meg
Holland, Anne
Romero, Lorena
Nisbet, Travis
Hodgson, Carol L.
Article History
Received: 6 August 2016
Accepted: 25 October 2016
First Online: 18 November 2016
Compliance with ethical standards
:
: None of the authors have any financial conflicts of interest. Three of the authors (CT, MH and CH) are authors on one of the randomised controlled trials included in the review. The data extraction and risk of bias assessment for this study were completed by two independent researchers.
: Not applicable.