MalhiGSOuthredTIrwinL. Bipolar II Disorder is a Myth. Can J Psychiatry. 2019;64(8)531–536.
2.
AltshulerLLSuppesTBlackDO. Lower switch rate in depressed patients with bipolar II than bipolar I disorder treated adjunctively with second-generation antidepressants. Am J Psychiatry. 2006;163(2):313–315.
3.
LeverichGSAltshulerLLFryeMA. Risk of switch in mood polarity to hypomania or mania in patients with bipolar depression during acute and continuation trials of venlafaxine, sertraline, and bupropion as adjuncts to mood stabilizers. Am J Psychiatry. 2006;163(2):232–239.
4.
PostRDenicoffKLeverichG. Presentations of depression in bipolar illness. Clin Neurosci Res. 2002;2:142–157.
5.
PostRLeverichG. Treatment of bipolar illness: a casebook for clinicians and patients. New York, NY: Norton; 2008.
6.
KupkaRWAltshulerLLNolenWA. Three times more days depressed than manic or hypomanic in both bipolar I and bipolar II disorder. Bipolar Disord. 2007;9(5):531–535.
7.
SuppesTMintzJMcElroySL. Mixed hypomania in 908 patients with bipolar disorder evaluated prospectively in the Stanley Foundation Bipolar Treatment Network: a sex-specific phenomenon. Arch Gen Psychiatry. 2005;62(10):1089–1096.
8.
KesslerRCAngermeyerMAnthonyJC. Lifetime prevalence and age-of-onset distributions of mental disorders in the World Health Organization’s World Mental Health Survey Initiative. World Psychiatry. 2007;6(3):168–176.
9.
PostRKupkaRKeckP. Further evidence of a cohort effect in bipolar disorder. J Clin Psychiatry. 2016;77(8):1043–1049.
10.
ParkerGFletcherK. Is bipolar II disorder increasing in prevalence? In: ParkerG, ed. Bipolar II disorder: modelling, measuring, and managing. 3rd ed. Cambridge, UK: Cambridge University Press; 2019:75–82.
11.
PostRMLeverichGSMcElroyS. Prevalence of axis II comorbidities in bipolar disorder: relationship to mood state. Bipolar Disord. 2018;20(4):303–312.
12.
PostRMMcElroySKupkaR. Axis II personality disorders are linked to an adverse course of bipolar disorder. J Nerv Ment Dis. 2018;206(6):469–472.
13.
BellinoSParadisoEBogettoF. Efficacy and tolerability of aripiprazole augmentation in sertraline-resistant patients with borderline personality disorder. Psychiatry Res. 2008;161(2):206–212.
14.
IngenhovenTLafayPRinneT. Effectiveness of pharmacotherapy for severe personality disorders: meta-analyses of randomized controlled trials. J Clin Psychiatry. 2010;71(1):14–25.
15.
SongJKuja-HalkolaRSjölanderA. Specificity in etiology of subtypes of bipolar disorder: evidence from a Swedish population-based family study. Biol Psychiatry. 2018;84(11):810–816.
16.
StahlEABreenGForstnerAJ. Genome-wide association study identifies 30 loci associated with bipolar disorder. Nat Genet. 2019;51:793–803.
17.
CharneyAWRuderferDMStahlEA. Evidence for genetic heterogeneity between clinical subtypes of bipolar disorder. Transl Psychiatry. 2017;7(1):e993.
18.
UemuraTGreenMWarshJJ. CACNA1C SNP rs1006737 associates with bipolar I disorder independent of the Bcl-2 SNP rs956572 variant and its associated effect on intracellular calcium homeostasis. World J Biol Psychiatry. 2016;17(7):525–534.
19.
AmsterdamJDShultsJ. Efficacy and safety of long-term fluoxetine versus lithium monotherapy of bipolar II disorder: a randomized, double-blind, placebo-substitution study. Am J Psychiatry. 2010;167(7):792–800.
20.
AmsterdamJDWangGShultsJ. Venlafaxine monotherapy in bipolar type II depressed patients unresponsive to prior lithium monotherapy. Acta Psychiatr Scand. 2010;121(3):201–208.
21.
MuzinaDJGaoKKempDE. Acute efficacy of divalproex sodium versus placebo in mood stabilizer-naive bipolar I or II depression: a double-blind, randomized, placebo-controlled trial. J Clin Psychiatry. 2011;72(6):813–819.
22.
DavisLLBartolucciAPettyF. Divalproex in the treatment of bipolar depression: a placebo-controlled study. J Affect Disord. 2005;85(3):259–266.
23.
GreilWKleindienstNErazoN. Differential response to lithium and carbamazepine in the prophylaxis of bipolar disorder. J Clin Psychopharmacol. 1998;18(6):455–460.
24.
TeraoTIshidaAKimuraT. Preventive effects of lamotrigine in bipolar II versus bipolar I disorder. J Clin Psychiatry. 2017;78(8):e1000–e1005.
25.
BirmaherBAxelsonDGoldsteinB. Four-year longitudinal course of children and adolescents with bipolar spectrum disorders: the Course and Outcome of Bipolar Youth (COBY) study. Am J Psychiatry. 2009;166(7):795–804.
26.
BirmaherBAxelsonDMonkK. Lifetime psychiatric disorders in school-aged offspring of parents with bipolar disorder: the Pittsburgh Bipolar Offspring Study. Arch Gen Psychiatry. 2009;66(3):287–296.
