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Did covid vaccine studies use an active placebo (with side effects)?
I know that the studies done by Pfizer, et al, used standard methods with a placebo control group. If you read about blinded experiments here, it mentions:
A common cause for unblinding is the ...
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Effects of placebo on viral load in tests for effectiveness of a drug combination for COVID-19
I have very little background in Medicine, pardon me for that. I came across this reference recently. Loosely speaking, this study aims at testing the effect of azithromycin and hydroxychloroquin for ...
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