...
- population
- treatment
- variable (endpoint)
- intercurrent events (events that can occur post-randomization)
- summary measure
Element description: TODO
very probably each of these 5 attributes will In ODM, these come as child elements of StudyEstimant, some of them referencing other elements (StudyEndPointRefStudyTargetPopulationRef, xxxEventRefStudyInterventionRef, .StudyEndPointRef)..)