Variation in health service use by veterans with an accepted disability of post-traumatic stress disorder who had a service record post 1975: a cluster analysis http://orcid.org/0000-0002-6811-8991Elizabeth Ellen Roughead1, E N Ramsay1, L M Kalisch Ellett1, A Khoo2, A Moffatt1 and N L Pratt1 1Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia 2Toowong Private Hospital, Gallipoli Medical Research Foundation, The University of Queensland Faculty of...