Weekly Health Quiz: Surveillance, Propaganda and Masks

1 Postmarketing surveillance data are:

• Not a sufficient or appropriate substitute for randomized placebo-controlled safety trials

  Postmarketing surveillance data is not a sufficient substitute for randomized placebo-controlled safety trials, especially if relying on voluntary reporting and/or self-reporting. Learn more.

• A perfectly valid substitute to randomized placebo-controlled safety trials
• Highly reliable, in terms of assessing safety
• Highly reliable, in terms of assessing efficacy