You might have to drink barium sulfate, a distinction agent that can help emphasize your inner organs and other tissues. The liquid will help make particular tissues, organs, and blood vessels simpler to see. The contrast substance normally leaves your technique in 24 hours.H? tr? ?i?u tr? b?nh x??ng kh?p, thoái hóa ??t s?ng, thoát v? ??a ??m, g