Each LOCATION
| must be classified by one and only one LOCATION TYPE | |
| must be created and updated by one and only one ORGANISATION | |
| may be the location for one or more ACTIVITY | |
| may be the originator of one or more DIAGNOSTIC TEST REQUEST | |
| may be at one or more PERSON OR ORGANISATION ADDRESS | |
| may be a venue for one or more PLANNED ACTIVITY | |
| may be the location for one or more SESSION |