| COCI | Consortium on Chemical Information |
|---|---|
| COD | cause of death; cerebro-ocular dysplasia; chemical oxygen demand; codeine; condition on discharge |
| CRB | chemical, radiological, and biological; congenital retinal blindness |
| CSA | Canadian Standards Association; canavaninosuccinic acid; carbonyl salicylamide; cell surface antigen... |
| CSIN | Chemical Substances Information Network |