| CHN | carbon, hydrogen, and nitrogen; child neurology; Chinese [hamster]; community health network; commun... |
|---|---|
| C/N | carbon/nitrogen [ratio]; carrier/ noise [ratio] |
| DN | Deiter's nucleus; dextrose-nitrogen; diabetic neuropathy; dibucaine number; dicrotic notch; dinitroc... |
| D/N | dextrose/nitrogen [ratio] |
| G/N | glucose/nitrogen ratio |