Each TISSUE TRANSPLANT
| K | must be transferred to one and only one PERSON | 
| K | must be related to one or more TISSUE | 
| must be the reason for the transplantation of one and only one TRANSPLANT ITEM | 
Classes
| K | must be transferred to one and only one PERSON | 
| K | must be related to one or more TISSUE | 
| must be the reason for the transplantation of one and only one TRANSPLANT ITEM | 
