| 66467-2 | Needle to inject drugs PhenX | |
| 66468-0 | Which drugs injected PhenX | |
| 66469-8 | Age first used needle PhenX | |
| 66470-6 | How long since last injected PhenX | |
| 66472-2 | How many times injected nRate PhenX | |
| 66473-0 | How often injected PhenX | |
| 66474-8 | Drug treatment program PhenX | |