Item deposited via Symplectic Elements by user: MS Elizabeth Latham HR Feed Proprietary ID: E5101843 EmailLiz.Latham@vu.edu.au ---------- Elements publication ID: 450295 CCBY NC 4.0 p1 of pdf " Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ." No VU byline. SF 13/2/23