This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times). 
See the Directory of published versions 
| Biomedical Research and Regulation  Work Group | Maturity Level: 0 | Trial Use | Compartments: Device, Group, Patient | 
Dependency Graph for ResearchSubject FMM level 0
| Name | Card. | Type | Dependency Analysis | 
|---|---|---|---|
|   ResearchSubject | DomainResource | ||
|    identifier | 0..* | Identifier | |
|    status | 1..1 | code | |
|    period | 0..1 | Period | |
|    study | 1..1 | Reference(ResearchStudy) | |
|    subject | 1..1 | Reference(Patient | Group | Specimen | Device | Medication | Substance | SubstanceDefinition | BiologicallyDerivedProduct) | |
|    subjectState | 0..* | BackboneElement | |
|     code | 1..1 | CodeableConcept | |
|     startDate | 1..1 | dateTime | |
|     endDate | 0..1 | dateTime | |
|     reason | 0..1 | CodeableConcept | |
|    subjectMilestone | 0..* | BackboneElement | |
|     milestone | 1..1 | CodeableConcept | |
|     date | 0..1 | dateTime | |
|     reason | 0..* | CodeableConcept | |
|    comparisonGroup | 0..* | CodeableReference | Type Error: (CodeableReference = FMM5-Draft vs. Element = FMM0-Trial Use) | 
|    consent | 0..* | Reference(Consent) |