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It was also an unblinded study, which means patients knew what study group they were in, which can influence their health behaviors.

Wine judging is subjective and unblinded, meaning that wine critics know the origins of the wines they're tasting.

“The realization of what that unblinded number meant—that, of course, is pure gold.”

My friend wound up getting the placebo, and was subsequently unblinded so she could go ahead and get fully vaccinated.

When the mass rollout of approved vaccines begun, they were "unblinded" and both found out they had received Novavax.