Clinical Study Phase (CSP) segment — HL7v2 v2.5.1.
Contains patient-specific clinical study phase information.
4 fields per HL7 v2.5.1 specification.
@type t() :: %HL7v2.Segment.CSP{ date_time_study_phase_began: term(), date_time_study_phase_ended: term(), extra_fields: term(), study_phase_evaluability: term(), study_phase_identifier: term() }