"bvrt","01" "subjectkey","src_subject_id","interview_date","interview_age","sex","study_id","study_condition","time_point","days_baseline","bvrtco","bvrter","bomld","bomrd","bdtld","bdtrd","bpeld","bperd","brold","brord","bmild","bmird","bsild","bsird","btold","btord"