Because grandpa Tian, a child with weak spleen and stomach, is the director of pediatrics of Beijing Hepingli Hospital of Integrated Traditional Chinese and Western Medicine, the chief physician of pediatrics of Beijing Hepingli Hospital of Integrated Traditional Chinese and Western Medicine, and the tutor of master students, it is certainly credible.

Tian Jiandong, director of pediatrics at Beijing Hepingli Hospital of Integrated Traditional Chinese and Western Medicine, graduated from Beijing University of Chinese Medicine 1985. I have done special programs on children's health education and diseases on CCTV, Liaoning Satellite TV, People's Daily client and Legal Daily.