TRUNCATE entity CASCADE;

TRUNCATE indication CASCADE;

TRUNCATE study_list CASCADE; 

TRUNCATE modality CASCADE;

TRUNCATE preparation CASCADE;

TRUNCATE cancellation_reason CASCADE;

TRUNCATE provenance_date CASCADE;

TRUNCATE headquarter CASCADE;

TRUNCATE preparation CASCADE;

TRUNCATE base_price CASCADE;

TRUNCATE rate CASCADE;

TRUNCATE room CASCADE;

TRUNCATE recommendation CASCADE;

TRUNCATE study_list CASCADE;   