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观察照射一定容积的颈部后,氨甲喋呤(MTX)能否提高大鼠脊髓的辐射反应。SD雌性12~14周龄的大鼠,用250kV X射线照射颈部脊柱长分别为4,
After observing a certain volume of the neck, methotrexate (MTX) can improve the radiation response of the rat spinal cord. SD Female 12 to 14-week-old rats, with 250kV X-ray irradiation neck spine length were 4,