check out the DES babies (0) or Thalidomide if you want to see how little we understand long term effects...My mom was a nanny and one of the girls she raised was born sterile due to DES her mom was given _to support pregnancy_ !

0) https://en.wikipedia.org/wiki/Birth_defects_of_diethylstilbe...

1) https://en.wikipedia.org/wiki/Thalidomide_scandal