Where used:
| Class | PATIENT | references in description TOBACCO CHEWING HISTORY |
| Class | TOBACCO USAGE | references in description TOBACCO CHEWING HISTORY |
| Data Element | TOBACCO CHEWING HISTORY | is implemented by data element TOBACCO CHEWING HISTORY |
| Class | PATIENT | references in description TOBACCO CHEWING HISTORY |
| Class | TOBACCO USAGE | references in description TOBACCO CHEWING HISTORY |
| Data Element | TOBACCO CHEWING HISTORY | is implemented by data element TOBACCO CHEWING HISTORY |