Where used:
| Attribute | NON SMOKING CONFIRMED AT 4 WEEKS | references in description QUIT DATE |
| Attribute | NON SMOKING CONFIRMED AT 52 WEEKS | references in description QUIT DATE |
| Attribute | OUTCOME AT 4 WEEK FOLLOW-UP | references in description QUIT DATE |
| Attribute | OUTCOME AT 52 WEEK FOLLOW-UP | references in description QUIT DATE |
| Class | PERSON | references in description QUIT DATE |
| Class | PERSON SMOKING CESSATION EPISODE | references in description QUIT DATE |