| TOXICON | Toxicology Information Conversational On-Line Network |
|---|---|
| TOXLINE | Toxicology Information On-Line [data bank] |
| TOXLIT | Toxicology Liturature [data bank] |
| TOXNET | Toxicology Network (NLM) [data bank] |
| CEC | central echo complex; ciliated epithelial cell; Commission of the European Community |