3 ms·
I've had 6 pet rats in my life and each one had tumors at the end. I wonder if that effect is properly controlled for as well.
by KekDemaga 9y ago
I've had 6 pet rats in my life and each one had tumors at the end. I wonder if that effect is properly controlled for as well.
- zaphods-towel 9y ago...yes, it is controlled for. Read the comment above you again. They compare exposed rats to unexposed rats. That accounts for your concern.