BackgroundCurrent estimates of the costs of cancer care in the United States are based on data from 2003 and earlier.
目前美国肿瘤医疗费用的预测都基于2003年以前的数据。
2
BackgroundCurrent survival models for primary biliary cirrhosis have limited precision for medium and long-term survival.
当前对原发性胆汁性肝硬化患者生存模式的预测，多局限在预测其中期和长期得生存率。
3
The selection of conditions on controlled potential, the kinds of supporting electrolyte and so on lessns the backgroundcurrent and makes the standard deviation less than 0.