Fingertip pulse oximeter was invented by Millikan in the 1940s to monitor the concentration of oxygen in arterial blood, an important indicator of the severity of COVID-19. Yonker now explains how ...
According to the National Health Commission information, by 24:00 on January 30, total of 9,692 cases of confirmed infection, 1,527 cases of severe cases, 213 cases of deaths, and 171 cases of cure...
