Erratum
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In the article “Ultra-High-Field Targeted Imaging of Focal Cortical Dysplasia: The Intracortical Black Line Sign in Type IIb” (*AJNR Am J Neuroradiol* 2019;40:[2137–42](http://www.ajnr.org/lookup/volpage/40/2137)), the institutional affiliations for M. Costagli were listed incorrectly. The correct affiliations are as follows: 

*   IMAGO7 Research Foundation, Pisa, Italy.

*   Istituto Di Ricovero e Cura a Carattere Scientifico Fondazione Stella Maris, Pisa, Italy.


*   © 2020 by American Journal of Neuroradiology