Where used:
| Class | OUT-PATIENT APPOINTMENT | has attribute APPOINTMENT TIME |
| Class | OUT-PATIENT CLINIC | references in description APPOINTMENT TIME |
| Class | PATIENT | references in description APPOINTMENT TIME |
| Class | OUT-PATIENT APPOINTMENT | has attribute APPOINTMENT TIME |
| Class | OUT-PATIENT CLINIC | references in description APPOINTMENT TIME |
| Class | PATIENT | references in description APPOINTMENT TIME |