Where used:
| Class | TOBACCO USAGE | has an attribute NUMBER OF YEARS SMOKED |
| Data Element | NUMBER OF YEARS SMOKED | references in description NUMBER OF YEARS SMOKED |
| Data Element | NUMBER OF YEARS SMOKED | is the data element of NUMBER OF YEARS SMOKED |
Attributes
| Class | TOBACCO USAGE | has an attribute NUMBER OF YEARS SMOKED |
| Data Element | NUMBER OF YEARS SMOKED | references in description NUMBER OF YEARS SMOKED |
| Data Element | NUMBER OF YEARS SMOKED | is the data element of NUMBER OF YEARS SMOKED |
