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A comment on Over 100 Scientists and Doctors Call for Increased Vitamin D to Combat Covid-19. Parent comment

Re:Over 100 Scientists and Doctors Call for Increased Vitami... by irq11 on Friday January 08, 2021 @11:26AM (#25686285)
It’s a “synthetic control” because they didn’t actually have a control group. So they tried to pretend their was such a group by taking data from elsewhere.

Yes, I read the paper.

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Re:Over 100 Scientists and Doctors Call for Increased Vitami... by jiofih on Sunday January 10, 2021 @08:57AM (#25714640)
How else do you propose a control group for an entire city, other than looking at other cities in the same region? Have you done research like this before?
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