Which pharmaceutical product recall was triggered by the scientific discovery that it caused severe birth defects by interfering with embryonic development?

The science of pharmaceuticals isn't just about developing breakthrough medications - it's also about ensuring their safety after market release. When scientific evidence reveals potential issues, product recalls become critical safety measures. Test your knowledge about some of the most significant pharmaceutical recalls in scientific history and the scientific processes that led to these critical decisions.

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Thalidomide (1961-1962)
Vioxx (2004)
Phenylpropanolamine (PPA) (2000)
Diethylstilbestrol (DES) (1971)