1. Centers for Disease Control and Prevention, Frieden T, Houry D, Baldwin G. Report to Congress on Traumatic Brain Injury in the United States: Epidemiology and Rehabilitation. Atlanta, GA: National Center for Injury Prevention and Control; Division of Unintentional Injury Prevention.; 2015.
2. Peeters W, van den Brande R, Polinder S, Brazinova A, Steyerberg EW, Lingsma HF, et al. Epidemiology of traumatic brain injury in Europe. Acta neurochirurgica 2015; 157(10): 1683-96.
3. Saatman KE, Duhaime AC, Bullock R, Maas AI, Valadka A, Manley GT. Classification of traumatic brain injury for targeted therapies. J Neurotrauma 2008; 25(7): 719-38.
4. Juengst SB, Kumar RG, Wagner AK. A narrative literature review of depression following traumatic brain injury: prevalence, impact, and management challenges. Psychol Res Behav Manag 2017; 10: 175-86.
5. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Fifth edition. ed2013.
6. Mauri MC, Paletta S, Colasanti A, Miserocchi G, Altamura AC. Clinical and neuropsychological correlates of major depression following post-traumatic brain injury, a prospective study. Asian J Psychiatr 2014; 12: 118-24.
7. Rao V, Mielke M, Xu X, Smith GS, McCann UD, Bergey A, et al. Diffusion tensor imaging atlas-based analyses in major depression after mild traumatic brain injury. J Neuropsychiatry Clin Neurosci 2012; 24(3): 309-15.
8. Bombardier CH, Fann JR, Temkin NR, Esselman PC, Barber J, Dikmen SS. Rates of major depressive disorder and clinical outcomes following traumatic brain injury. JAMA 2010; 303(19): 1938-45.
9. Fann JR, Hart T, Schomer KG. Treatment for depression after traumatic brain injury: a systematic review. J Neurotrauma 2009; 26(12): 2383-402.
10. Sukraeny N, Songwathana P, Sae-Sia W. Quality of Life (QoL) in patients with Traumatic Brain Injury (TBI): A Literature Review. Nurse Media J Nurs 2014; 3(2): 607-19.
11. Karimi M, Brazier J. Health, Health-Related Quality of Life, and Quality of Life: What is the Difference? PharmacoEconomics 2016; 34(7): 645-9.
12. Di Battista A, Godfrey C, Soo C, Catroppa C, Anderson V. Depression and health related quality of life in adolescent survivors of a traumatic brain injury: a pilot study. PloS One 2014; 9(7): e101842.
13. Diaz AP, Schwarzbold ML, Thais ME, Hohl A, Bertotti MM, Schmoeller R, et al. Psychiatric disorders and health-related quality of life after severe traumatic brain injury: a prospective study. J Neurotrauma 2012; 29(6): 1029-37.
14. Verdugo MA, Fernández M, Gómez LE, Amor AM, Aza A. Predictive factors of quality of life in acquired brain injury. Int J Clin Health Psychol 2019; 19(3): 189-97.
15. Weber KT, Guimarães VA, Pontes Neto OM, Leite JP, Takayanagui OM, Santos-Pontelli TE. Predictors of quality of life after moderate to severe traumatic brain injury. Arq Neuropsiquiatr 2016; 74(5): 409-15.
16. Forslund MV, Roe C, Sigurdardottir S, Andelic N. Predicting health-related quality of life 2 years after moderate-to-severe traumatic brain injury. Acta Neurol Scand 2013; 128(4): 220-7.
17. Williamson ML, Elliott TR, Berry JW, Underhill AT, Stavrinos D, Fine PR. Predictors of health-related quality-of-life following traumatic brain injury. Brain Inj 2013; 27(9): 992-9.
18. Ubukata S, Sugihara G, Murai T, Ueda K. Predictors of Social Function and Quality of Life in Patients with Traumatic Brain Injury. Eur Psychiatry 2017; 41(S1): s792-s.
19. Hayes SC, Luoma JB, Bond FW, Masuda A, Lillis J. Acceptance and commitment therapy: model, processes and outcomes. Behav Res Ther 2006; 44(1): 1-25.
20. Whiting DL, Deane FP, Simpson GK, McLeod HJ, Ciarrochi J. Cognitive and psychological flexibility after a traumatic brain injury and the implications for treatment in acceptance-based therapies: A conceptual review. Neuropsychol Rehabil 2017; 27(2): 263-99.
21. Bach P, Moran D. ACT in Practice: Case Conceptualization in Acceptance & Commitment Therapy. Oakland, CA: New Harbinger; 2008.
22. Zettle R. ACT for depression: a clinician’s guide to using acceptance and commitment therapy in treating depression. Oakland, CA: New Harbinger; 2007.
23. Van Bost G, Van Damme S, Crombez G. The role of acceptance and values in quality of life in patients with an acquired brain injury: a questionnaire study. Peer J 2017; 5: e3545.
24. Beck AT, Rush AJ, Rush JA, Rush ja, Shaw BF, Shaw ja, et al. Cognitive Therapy of Depression: Guilford Publications; 1979.
25. Bennebroek Evertsz F, Bockting CL, Stokkers PC, Hinnen C, Sanderman R, Sprangers MA. The effectiveness of cognitive behavioral therapy on the quality of life of patients with inflammatory bowel disease: multi-center design and study protocol (KL!C- study). BMC Psychiatry 2012; 12: 227.
26. Kato T. Impact of psychological inflexibility on depressive symptoms and sleep difficulty in a Japanese sample. Springer Plus 2016; 5(1): 712.
27. Gilbert KE, Tonge NA, Thompson RJ. Associations between depression, anxious arousal and manifestations of psychological inflexibility. J Behav Ther Exp Psychiatry 2019; 62: 88-96.
28. Østergaard T, Lundgren T, Zettle RD, Landrø NI, Haaland V. Psychological Flexibility in Depression Relapse Prevention: Processes of Change and Positive Mental Health in Group-Based ACT for Residual Symptoms. Fron Psychol 2020; 11: 528.
29. Kashdan TB, Rottenberg J. Psychological flexibility as a fundamental aspect of health. Clin Psychol Rev 2010; 30(7): 865-78.
30. Twohig MP, Levin ME. Acceptance and commitment therapy as a treatment for anxiety and depression: A review. Psychiatr Clin North Am 2017; 40(4): 751-70.
31. World Medical Association. World Medical Association Declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA 2013; 310(20): 2191-4.
32. Green SB. How Many Subjects Does It Take To Do A Regression Analysis. Multivar Behav Res 1991; 26(3): 499-510.
33. Bond FW, Hayes SC, Baer RA, Carpenter KM, Guenole N, Orcutt HK, et al. Preliminary psychometric properties of the Acceptance and Action Questionnaire-II: a revised measure of psychological inflexibility and experiential avoidance. Behav Ther 2011; 42(4): 676-88.
34. Imani M. Factor structure of psychological flexibility in student. Teach Learn Univ Shiraz 2016; 8(1): 162-81. [in Persian]
35. Beck A, Steer R, GK. B. Manual for the beck depression inventory-II. San Antonio, TX: Psychological Corporation; 1996.
36. Beck AT, Epstein N, Brown G, Steer RA. An inventory for measuring clinical anxiety: psychometric properties. J Consult Clin Psychol 1988; 56(6): 893-7.
37. Ghassemzadeh H, Mojtabai R, Karamghadiri N, Ebrahimkhani N. Psychometric properties of a Persian-language version of the Beck Depression Inventory--Second edition: BDI-II-PERSIAN. Depres Anxiety 2005; 21(4): 185-92.
38. Ware Jr JE, Kosinski M, Keller SD. A 12-Item Short-Form Health Survey: construction of scales and preliminary tests of reliability and validity. Med Care 1996; 34(3): 220-33.
39. Ware JE, Kosinski M, Keller SD. SF-12: How to Score the SF-12 Physical and Mental Health Summary Scales. 2nd ed . Boston MA: The Health Institute, New England Medical Center; 1995.
40. Montazeri A, Vahdaninia M, Mousavi SJ, Omidvari S. The Iranian version of 12-item Short Form Health Survey (SF-12): factor structure, internal consistency and construct validity. BMC Public Health 2009;9:341.
41. Baron RM, Kenny DA. The moderator-mediator variable distinction in social psychological research: conceptual, strategic, and statistical considerations. J Pers Soc Psychol 1986; 51(6): 1173-82.
42. Park HS, Lee JW. Mediating effect of psychological flexibility on quality of life in inpatients with schizophrenia. J Korean Acad Psychiatr Ment Health Nurs 2018; 27(3): 284-92.
43. Berlim MT, Fleck MPA. Quality of Life and Major Depression: Current findings and future perspectives. In: Ritsner MS, Awad AG, editors. Quality of life impairment in schizophrenia, mood and anxiety disorders: New perspectives on research and treatment. Dordrecht: Springer Science & Business Media; 2007. p. 241-52.
44. Ruiz FJ, Odriozola-González P. The role of psychological inflexibility in Beck’s cognitive model of depression in a sample of undergraduates. Anales De Psicología 2016; 32(2): 441-7.
45. Ruiz FJ. A review of Acceptance and Commitment Therapy (ACT) empirical evidence: Correlational, experimental psychopathology, component and outcome studies. Rev Int Psicol Ter Psicol 2010; 10(1): 125-62.
46. Hayes SC. Acceptance and Commitment Therapy and the New Behavior Therapies: Mindfulness, Acceptance, and Relationship. Mindfulness and acceptance: Expanding the cognitive-behavioral tradition. New York, NY, US: Guilford Press; 2004. p. 1-29.
47. Scott W, Hann KE, McCracken LM. A comprehensive examination of changes in psychological flexibility following acceptance and commitment therapy for chronic pain. J Contemp Psychother 2016; 46(3): 139-48.