第三阶段为理论创新及特色形成阶段（宋金元），以金元四大家刘完素、张从正、李杲、朱震亨的刺血成就为其代表；
The third stage is of theory-creating and characteristic-forming ( Song , Jin , Yuan Period ), and the achievement of four great physicians of the Jin and Yuan Period is know as its representative .
张从正