@type t() :: %HL7v2.Segment.CSR{
  alternate_patient_id: term(),
  alternate_study_id: term(),
  date_time_ended_study: term(),
  date_time_of_patient_study_registration: term(),
  date_time_patient_study_consent_signed: term(),
  extra_fields: term(),
  institution_registering_the_patient: term(),
  patient_evaluability_status: term(),
  patient_study_eligibility_status: term(),
  person_performing_study_registration: term(),
  randomized_study_arm: term(),
  reason_ended_study: term(),
  sponsor_patient_id: term(),
  sponsor_study_id: term(),
  stratum_for_study_randomization: term(),
  study_authorizing_provider: term(),
  study_randomization_date_time: term()
}