[1] Edinburgh Napier Univ, Sch Hlth & Social Care, Edinburgh EH11 4BN, Scotland
[2] Stanford Univ, NHS Lothian Rivers Ctr, EH11 1BG, 450 Jane Stanford Way, Stanford, CA 94305 USA
[3] Falkirk Community Hosp, NHS Forth Valley, Mayfield Bldg, Falkirk FK1 5QE, Scotland
[4] VA Palo Alto Hlth Care Syst, Natl Ctr PTSD, Disseminat & Training Div, 795 Willow Rd, Menlo Pk, CA 94025 USA
[5] Stanford Univ, Dept Psychiat & Behav Sci, Palo Alto, CA 94305 USA