Vitamin D supplementation as a potential cause of U-shaped associations between vitamin D levels and negative health outcomes: a decision tree analysis for risk of frailty
Crossref DOI link: https://doi.org/10.1186/s12877-017-0631-0
Published Online: 2017-10-16
Published Print: 2017-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Kojima, Gotaro
Iliffe, Steve
Tanabe, Marianne