OA - HD 7/2/17. -- Blue in Sherpa: Author's Pre-print: question mark archiving status unclear Author's Post-print: cross author cannot archive post-print (ie final draft post-refereeing) Publisher's Version/PDF: green tick author can archive publisher's version/PDF General Conditions: On any website or open access repository Creative Commons Attribution License Authors retain copyright Published source must be acknowledged Articles are placed in PubMed Central immediately on behalf of authors. Publisher's version/PDF must be used. - File added, 15.2.17-MMM