It's amazing how, dozens/hundreds of studies and months into the research of COVID-19 and Vitamin D and given the quality of the research it's STILL impossible to know the answer to the only important question (does supplementation do anything?) with any certainty
That's literally it. Nonmasked specialists could access the list, meaning that allocation was not concealed
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Evaluating results is not the point, it is who gets to allocate patients into groups. If you're interested in allocation concealment and why this is an issue, the Cochrane handbook is a good read
End of conversation
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