scientific article published on 14 August 2013
author: Peter Tugwell, Vivian Welch, Susan Michie, Sasha Shepperd, Simon Lewin, Mark Petticrew, Kevin Pottie, Tomas Pantoja, Alain Mayhew, Ian Shemilt, Jane Noyes, Eva A Rehfuess, Amanda J Sowden
Copyright status information is not available for this work. The copyright status depends on the jurisdiction, the author's date of death and the date the work was created or published.
To learn more about copyright terms in different countries, visit the countries and terms page.