On this day, 42 years ago, April 11, 1983 (February 28, 1983 in the lunar calendar), the "Shue Theory" of human microcirculation was recognized. Wan Li met with Xiu Ruijuan and listened to her introduction of microcirculation research work (1992) In April 1983, Xiu Ruijuan, an assistant researcher at the Institute of Basic Medicine, China Academy of Medical Sciences, who was studying in the United States, read out her paper on new theories of human microcirculation at the National Society of Microcirculation Conference, which impressed the medical authority of the United States. "Shue's theory" was immediately recognized. Based on a large number of experiments, Xiu Ruijuan discovered and proved that the autonomous movement of the human body's arterioles at all levels spreads in waves, and the microcirculation perfuses organs and tissues in a wave-like manner. This achievement is a major breakthrough in research in this field.