Karatzias, Thanos, Hyland, Philip, Bradley, Aoife, Cloitre, Marylène, Roberts, Neil P., Bisson, Jonathan I., Shevlin, Mark, "Risk factors and comorbidity of ICD‐11 PTSD and complex PTSD: Findings from a trauma‐exposed population based sample of adults in the United Kingdom", Depression and Anxiety, 2019