References: Features of bipolar disorder

American Psychiatric Association. Diagnostic and statistical manual of mental disorders (DSM-5). 5th ed. Washington, DC: American Psychiatric Association Publishing; 2013. https://www.psychiatry.org/psychiatrists/practice/dsm
Grande I, Berk M, Birmaher B, Vieta E. Bipolar disorder. Lancet 2016;387(10027):1561–72. https://www.ncbi.nlm.nih.gov/pubmed/26388529
Malhi GS, Bassett D, Boyce P, Bryant R, Fitzgerald PB, Fritz K, et al. Royal Australian and New Zealand College of Psychiatrists clinical practice guidelines for mood disorders. Aust N Z J Psychiatry 2015;49(12):1087–206. https://www.ncbi.nlm.nih.gov/pubmed/26643054
National Institute for Health and Care Excellence (NICE). Bipolar disorder: assessment and management [cg185]. London: NICE; 2014 (updated 2020). https://www.nice.org.uk/guidance/cg185
Vieta E, Berk M, Schulze TG, Carvalho AF, Suppes T, Calabrese JR, et al. Bipolar disorders. Nat Rev Dis Primers 2018;4:18008. https://www.ncbi.nlm.nih.gov/pubmed/29516993