Treatment Outcomes in Erythema Annulare Centrifugum: A Systematic Review.

Competing Interests: Declaration of Conflicting InterestsThe author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Dr. Yeung has been an advisor, consultant, speaker, and/or investigator for AbbVie, Allergan, Amgen, Astellas, Bausche, Baxalta, Boehringer Ingelheim, Celgene, Centocor, Coherus, Dermira, Eli Lilly, Forward, Fresenius Kabi, Galderma, Incyte, Janssen, LEO Pharma, Lilly, MedImmune, Merck, Novartis, Pfizer, Regeneron, Roche, Sanofi Genzyme, Sun Pharma, Takeda, UCB, and Xenon. Dr. Mufti has been a speaker for AbbVie and Janssen. Authors Geng, Sood, Lee, Waked, and Usman have no conflicts of interest to declare.