Professor SUN Guang-rong summed up important syndrome differentiation elements into 10 kinds,spirit and body,healthy energy-evil struggle,Yin and Yang,inside and outside,cold and heat,positive deficiency and evil sthenia,principal and inferior syndromes,symptoms and root,reverse and favourable case,life and death.Important syndrome differentiation elements is the key of TCM syndrome differentiation.The analysis of the relationship and clinical significance of the 10 important syndrome differentiation elements has gr...