Correction to: Nature Reviews Endocrinology https://doi.org/10.1038/s41574-023-00886-5, published online 5 September 2023.

In the version of the article initially published, in the fifth paragraph of the “Indications for surgery” section, a reference was incorrectly cited at the end of the sentence now reading “Preoperative serum levels of prolactin correlate negatively with microprolactinoma remission rates, such that a remission rate of 92% was seen with a preoperative prolactin serum level of ≤200 ng/ml versus only 40% with preoperative prolactin serum level of >200 ng/ml”. The sentence now cites Lu, J. et al., Surgery and Medical treatment in microprolactinoma: a systematic review and meta-analysis. Int. J. Endocrinol. 2021, 9930059 (2021) in the HTML and PDF versions of the article.