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Meta-Regression Analyses, Meta-Analyses, and Trial Sequential Analyses of the Effects of Supplementation with Beta-Carotene, Vitamin A, and Vitamin E Singly or in Different Combinations on All-Cause Mortality: Do We Have Evidence for Lack of Harm?
- Goran Bjelakovic,
- Dimitrinka Nikolova,
- Christian Gluud
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- Published: September 6, 2013
- https://doi.org/10.1371/journal.pone.0074558