{description: This operation is a constrained version of the FHIR STU 3 Patient match operation.  The operation takes a Parameters instance containing a single candidate patient resource populated with the characteristics of the patient being searched for. The data provided is interpreted as an MPI input and  passed to an MPI algorithm of some kind that uses them to determine the most appropriate matches in the patient set.  These matches may not result in an exact match of all specified criteria.  Allowances are made for variations in spelling as well as potential data entry errors.  The complete set of specified criteria are evaluated as a whole to deterimine the likelihood of each candidate patient being a match.   The operation can only be invoked by POST with the Patient resource instance sent as the HTTP body., package_name: PCR.Core.STU3, name: Find patient matches using MPI based logic, type: 'true', package_version: 1.0.1, class: operation, kind: operation, url: 'https://ehealthontario.ca/fhir/OperationDefinition/pcr-Patient-match', version: null}