“…To put it simply, telephone interviewing was not always possible. In addition, we were faced with a very difficult and still outstanding issue as is any study of U.K. veterans: there is no publicly accessible sampling frame from which a representative sample could be drawn (Scarbrough & Tannenbaum, 1997). While other studies have sought to identify the wider veteran community through National Health Service (NHS) records (e.g., Bergman et al, 2017;Bergman et al, 2018) or sampled individuals from such records all employ the simple maxim that veterans have been identified or self-identified in the first instance.…”