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We appreciate Dr Grant's comments1 on our article2 and are pleased to have the opportunity to respond.
Although his comments on our study are valuable and constructive, we were unable to address the issues he has raised. The original studies included in our meta-analysis lacked assessment of vitamin D intake and …
Contributors YG and ZXL replied to the comment. YG wrote the draft of the letter. All authors contributed to the writing, review or revision of the paper. They also read and approved the final manuscript. ZXL is the guarantor of this work and, as such, had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Competing interests None.
Provenance and peer review Not commissioned; internally peer reviewed.
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