And the way the drug gets tested is through a series of, basically, experiments, through these large, they're called trials, that they do to determine whether the drug is safe and whether it works and all these things.
La manera de probar el fármaco es a través de una serie de experimentos, largos experimentos, llamados ensayos, que se hacen para determinar si el fármaco es seguro y si funciona y todas esas cosas.