Current WHO estimates suggest that the vaccine storage requirements would at least double if only single-dose presentations were used (WHO vaccine volume calculator, March 2011).
目前，世卫组织估计表明，如果仅提供单剂疫苗，那么疫苗的存储需求将至少是现在的两倍(世卫组织疫苗量计算工具，2011年3月)。
All plans were compared according to the planning target volume coverage, dose-volume histogram and other dosimetric parameters of normal tissues.
根据计划靶区的等剂量分布、体积-剂量直方图以及其他的剂量学指标，比较两种不同治疗计划的优劣。
Conclusions: the beam Angle and the number of beams have influence upon dose distribution, the dose distribution would be improved for large volume target with the increment of beam number.
结论：照射野方向和照射野的数目对剂量分布有影响，增加照射野的数目可以改善体积较大的病灶的剂量分布。
应用推荐