Zhang Qinghua is currently the president of the 305 Hospital of the People's Liberation Army of the Security Bureau of the Central Office, the director of the geriatric center of the whole army, a famous health care expert and doctoral supervisor. Zhang Zhiyuan has been engaged in cardiovascular diseases, senile diseases and anti-aging research for a long time. He has published nearly 100 papers, edited and participated in the compilation of more than 50 works, and won more than 30 scientific and technological progress awards of the whole army. Young and middle-aged experts of the General Staff Department enjoy special government allowances.