| DDD | AV universal [pacemaker]; defined daily dose; degenerative disc disease; dehydroxydinaphthyl disulfi... |
|---|---|
| ND | Doctor of Naturopathy; nasal deformity; natural death; Naval Dispensary; neonatal death; neoplastic ... |
| TCID | tissue culture infective dose; tissue culture inoculated dose |
| TCID50 | median tissue culture infective dose; 50% tissue culture infective dose |
| MAVD | mixed aortic valve disease |