Phone or wechat. Zhang Zhengtian Expert Advisory Committee Jilin Provincial Working Committee has opened expert consultation, and handled and responded to the consultation and appointment of patients at home and abroad at the first time. Over the years, China Zhang Zhengtian Expert Committee has extensively carried out high-end medical academic exchanges and business cooperation at home and abroad, and continuously imported the top medical technology, cutting-edge medical experience and the most effective clinical methods to hospitals all over the country for the benefit of the people.