Hua, Jiang, Feng, and Zou: Corrigendum to: Negligible effect of vitamin D supplementation on exacerbation in patients with chronic obstructive pulmonary disease: meta-analysis

This is a correction of Biochem Med (Zagreb) 2023;33(3):030703. DOI:

Since the publication of the article, the authors have noticed that the statement “The first two authors contributed equally to this work.” is missing from the byline. The correct byline is presented above. We apologize to the authors for any inconvenience caused to the readers.