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. 2023 May 17;10:1162442. doi: 10.3389/fnut.2023.1162442

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Copyright © 2023 Gou, Li, Qiao, Maimaititusvn and Liu.

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Funnel plots from exposure on outcome. (A) From IGF-1 on vitamin D. (B) From IGF-1 on 25-hydroxyvitamin D. (C) From vitamin D on IGF-1. (D) From 25-hydroxyvitamin D on IGF-1.