Each CLINICAL INTERVENTION
| must be the reason for using one and only one MACHINE | |
| may be the reason for administering one or more ANAESTHETIC OR ANALGESIC | |
| may be the provider of one or more CLINICAL INVESTIGATION RESULT ITEM | |
| may be classified as one and only one CODED CLINICAL ENTRY | |
| may be the user of one or more MEDICAL DEVICE | |
| may be the user of one and only one SAMPLE |