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source_6b75a76b7d174f3d
**Selected angle:** `counter_signal` ## One-sentence thesis The cited receipts show an apparent collision between a positive direct signal in general population (analytical studies) (vitamin D supplementation has a protective effect against the incidence of COVID-19 in analytical studies (OR = 0.592, 95% IC 0.476-0.736)) and an opposing endpoint in adults with chronic liver diseases (We are very…
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