c1 Refereed Journal Article. Yellow in Sherpa; Author's Pre-print: 	author can archive pre-print (ie pre-refereeing)
Author's Post-print: subject to Restrictions below, author can archive post-print (ie final draft post-refereeing)  Restrictions: 
12 months embargo for scientific, technical or medical journals
12 years embargo for social sciences and humanities journals
Publisher's Version/PDF: author cannot archive publisher's version/PDF  --MA 26/2/14. Auther (Hoslop) as send us the published version, Requested Accepted version & Permission Permission 6.3.14-MMM. Supporting documentation added to dark upload - HD 14/11/17