I thought I'd look at this paper in a little bit more detail because, well, there are some pretty big issues Let's do some peer-review on twitter!https://twitter.com/GidMK/status/1303539430024568832 …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
One example - there was an electronically generated randomization schedule (good) that was accessible to the people responsible for group assignment (less good). Could've just been that they randomized sicker people to not get the treatment
That makes sense, but even if there weren't a control group, wouldn't those numbers (1 in 50) be remarkable in themselves? I know they could've chosen 50 healthy-yet-hospitalized ~70-year-olds, but there's no money in vitamin D and it's safe. Why not try it until proven wrong?
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.