> It would be impossible to hide. I think about Thalidomide. It's definitely a teratogen, but you only see birth defects if it's taken during a very specific

> It would be impossible to hide. I think about Thalidomide. It's definitely a teratogen, but you only see birth defects if it's taken during a very specific window during pregnancy. This fact led to the product being left on the market for many years, and even for a period time after we concluded that it was responsible for horrific birth defects and newborn deaths.