| APD | action potential duration; acute polycystic disease; advanced physical diagnosis; anteroposterior di... |
|---|---|
| ATD | Alzheimer-type dementia; androstatrienedione; anthropomorphic test dummy; antithyroid drug; aqueous ... |
| BCDSP | Boston Collaborative Drug Surveillance Program |
| BCRx | birth control drug |
| BDAC | Bureau of Drug Abuse Control |