Each DIAGNOSTIC TEST REQUEST
| must be associated with one and only one SERVICE ORDER | |
| may be from one and only one LOCATION | |
| may be classified by one and only one PATHOLOGY INVESTIGATION TYPE | |
| may be performed on one or more SAMPLE |
Classes
| must be associated with one and only one SERVICE ORDER | |
| may be from one and only one LOCATION | |
| may be classified by one and only one PATHOLOGY INVESTIGATION TYPE | |
| may be performed on one or more SAMPLE |