Where used:
| Attribute | QUIT DATE | references in description OUTCOME AT 4 WEEK FOLLOW-UP |
| Class | PERSON SMOKING CESSATION EPISODE | has attribute OUTCOME AT 4 WEEK FOLLOW-UP |
| Attribute | QUIT DATE | references in description OUTCOME AT 4 WEEK FOLLOW-UP |
| Class | PERSON SMOKING CESSATION EPISODE | has attribute OUTCOME AT 4 WEEK FOLLOW-UP |