PTCA is the abbreviation for percutaneous transluminal coronary angioplasty (usually radial or femoral). PTCA broadly covers all coronary interventional treatments. But in a narrow sense, people of...
The operation method of the sensor is similar to that of the venous indwelling needle. After the puncture sees the return of blood, the patient’s artery is pressed, the needle core is pulled ...
As of April 28th, 2021, 31 provinces (autonomous regions and municipalities regions directly under the Central Government) and Xinjiang Production and Construction Corps have reported that a total ...
In 2020, due to the widespread of the new coronavirus epidemic, people’s normal lives have been seriously affected. Almost 7 billion people in the world need to be vaccinated against the new ...