1Fava, M. Diagnosis and definition of treatment-resistant depression. Biol Psychiatry 2003; 53: 649–59.
2Fava, M, Davidson, KG. Definition and epidemiology of treatment-resistant depression. Psychiat Clin North Am 1996; 19: 179–200.
3NICE. Depression: The Treatment and Management of Depression in Adults. Clinical Guideline CG90. National Institute for Health and Care Excellence, 2009 (https://www.nice.org.uk/guidance/cg90).
4Heijnen, WT, Birkenhäger, TK, Wierdsma, AI, van den Broek, WW. Antidepressant pharmacotherapy failure and response to subsequent electroconvulsive therapy: a meta-analysis. J Clin Psychopharmacol 2010; 30: 616–9.
5Semkovska, M, McLoughlin, DM. Objective cognitive performance associated with electroconvulsive therapy for depression: a systematic review and meta-analysis. Biol Psychiatry 2010; 68: 568–77.
7Fitzgerald, PB, Fountain, S, Daskalakis, ZJ. A comprehensive review of the effects of rTMS on motor cortical excitability and inhibition. Clin Neurophysiol 2006; 117: 2584–96.
9Cusin, C, Dougherty, DD. Somatic therapies for treatment-resistant depression: ECT, TMS, VNS, DBS. Biol Mood Anxiety Dis 2012; 2: 14.
10Farmer, C, Farrand, P, O'Mahen, H. ‘I am not a depressed person’: how identity conflict affects help-seeking rates for major depressive disorder. BMC Psychiatry 2012; 12: 164.
11Braun, V, Clarke, V. Using thematic analysis in psychology. Qual Res Psychol 2006; 3: 77–101.
12Boyatzis, RE. Transforming Qualitative Information: Thematic Analysis and Code Development. Sage Publications, 1998.
14Andrade, L, Caraveo-Anduaga, JJ, Berglund, P, Bijl, RV, De Graaf, R, Vollebergh, W, et al. The epidemiology of major depressive episodes: results from the International Consortium of Psychiatric Epidemiology (ICPE) Surveys. Int J Methods Psychiatr Res 2003; 12: 3–21.
16Hawton, K, I Comabella, CC, Haw, C, Saunders, K. Risk factors for suicide in individuals with depression: a systematic review. J Affect Disord 2013; 147: 17–28.
18Möller-Leimkühler, AM. Barriers to help-seeking by men: a review of sociocultural and clinical literature with particular reference to depression. J Affect Disord 2002; 71: 1–9.
19Oliver, MI, Pearson, N, Coe, N, Gunnell, D. Help-seeking behaviour in men and women with common mental health problems: cross-sectional study. Br J Psychiatry 2005; 186: 297–301.
20Van de Velde, S, Bracke, P, Levecque, K. Gender differences in depression in 23 European countries. Cross-national variation in the gender gap in depression. Soc Sci Med 2010; 71: 305–13.
21Furukawa, TA, McGuire, H, Barbui, C. Meta-analysis of effects and side effects of low dosage tricyclic antidepressants in depression: systematic review. BMJ 2002; 325: 991.
22Schweitzer, I, Maguire, K, Ng, C. Sexual side-effects of contemporary antidepressants: review. Aust New Zeal J Psychiatry 2009; 43: 795–808.
23Richards, D. Prevalence and clinical course of depression: a review. Clin Psychol Rev 2011; 31: 1117–25.
24Gurung, R. Health Psychology: A Cultural Approach. Wadsworth Publishing, 2006.
25Dunn, LB, Holtzheimer, PE, Hoop, JG, Mayberg, HS, Roberts, LW, Appelbaum, PS. Ethical issues in deep brain stimulation research for treatment-resistant depression: focus on risk and consent. AJOB Neurosci 2011; 2: 29–36.
26Swift, T. Desperation may affect autonomy but not informed consent. AJOB Neurosci 2011; 2: 45–46.
27Hughes-Morley, A, Young, B, Waheed, W, Small, N, Bower, P. Factors affecting recruitment into depression trials: systematic review, meta-synthesis and conceptual framework. J Affect Disord 2015; 172: 274–90.
28Locock, L, Smith, L. Personal benefit, or benefiting others? Deciding whether to take part in clinical trials. Clin Trials 2011; 8: 85–93.
30NICE. Transcranial Magnetic Stimulation for Severe Depression (Interventional Procedure Guidance IPG242). National Institute for Health and Care Excellence, 2007.