The document is a correction notice for an article titled "Abcg2a is the functional homolog of human ABCG2 expressed at the zebrafish blood-brain barrier." The correction addresses an error in Supplementary Fig. 3, where the incorrect version was published instead of the intended figure and legend. The correct and incorrect versions of Supplementary Fig. 3 are provided in the document. The correction was made by the authors and the publisher, Springer Nature, remains neutral in this matter.