Preprint: archiving forbidden.
Postprint: archiving forbidden.
Published version: archiving restricted:
- 6 months embargo
- Publisher's version/PDF must be used
- On Institutional Repository or Funder's repository
- Must link to publisher version
- Published source must be acknowledged with full citation
- Publisher will automatically deposit authors post-print in PubMed Central or Europe PMC after 6 months or 12 months as required by funding agency
- Reviewed 07 July 2014