The publisher apologises that a question mark was inserted the within the title for the article Hock, J., Willinger, L., Pozza, R., Ewert, P., & Hager, A. (2023), the title Abnormalities in pulmonary function and volumes in patients with CHD?: A systematic review was therefore incorrect and should be:
Abnormalities in pulmonary function and volumes in patients with CHD: A systematic review
The online version of this article has been updated.