Master-apprentice relationship Liu Huanlan is the leader of the key discipline of TCM health preservation in state administration of traditional chinese medicine and an academic leader. He is a disciple of Shi Xuemin, an academician of China Academy of Engineering and a master of traditional Chinese medicine. Zhai Jiabin is an academician of China Academy of Engineering and the inheritor of Shi Xuemin's academic thought of refreshing the brain and enlightening. They belong to the mentoring relationship.