derive_param_qtc()
BDS-Findings Functions for adding Parameters/Records:
derive_expected_records(),
derive_extreme_event(),
derive_extreme_records(),
derive_locf_records(),
derive_param_bmi(),
derive_param_bsa(),
derive_param_computed(),
derive_param_doseint(),
derive_param_exist_flag(),
derive_param_exposure(),
derive_param_framingham(),
derive_param_map(),
derive_param_qtc(),
derive_param_rr(),
derive_param_wbc_abs(),
derive_summary_records()