Determination of power and sample size in interim analysis of clinical trials using the PASS2000 statistical software;
利用PASS2000估计临床试验期中分析效能及样本大小
It is very necessary to analyze the works of the classic and annals writers from pre-Qin times in studying earlier Chinese medicine.
对早期中医的研究,从先秦时代的经史诸子著作记载中进行分析是非常有必要的。
In these cycles, Central Plain cultures developed gradually, and the sphere of cultural interaction in China expanded, and finally an "Early China" emerged.
正是在这种周期性的变化过程中,中原文化得以呈螺旋式发展壮大,“中国相互作用文化圈”的范围由小到大、内部联系日趋密切、认同感日益加强,具有历史意义的“早期中国”从酝酿至雏形到最终形成。