| CHN | carbon, hydrogen, and nitrogen; child neurology; Chinese [hamster]; community health network; commun... |
|---|---|
| CIREN | Crash Injury Research and Engineering Network |
| CSIN | Chemical Substances Information Network |
| DAWN | Drug Abuse Warning Network |
| DEN | denervation; dengue; dermatitis exfoliativa neonatorum; Device Experience Network [of the CDRH]; die... |