A pharmaceutical company conducts a clinical trial of a new drug for allergies.
Group B is the
control group
experimental group
ED50 group
TD50 group
![A pharmaceutical company conducts a clinical trial of a new drug for allergiesGroup B is thecontrol groupexperimental groupED50 groupTD50 group class=](https://us-static.z-dn.net/files/d44/99945f91040b64ae5e1fbf0fab870946.png)