| PPDs | (Tuberculin) Purified Protein Derivatives |
|---|---|
| AICAR | Amino-Imidazole Carbox-Amide Ribotide |
| DTIC | Dimethyl Triazeno Imidazole Carboxamide ; Alkylating Agent |
| SAICAR | Succinyl-Amino-Imidazole Carbox-Amide Ribotide |
| AIR | amino-imidazole ribonucleotide; average impairment rating |