<正>Stents that keep weakened arteries from collapsing have been true life-savers,but are no longer needed once the arteries are strengthened.Now,a researcher h
Coughing is the body clearance of airway secretions or foreign objectsinside the protective breathing reflex, the intensity and frequency of occurrence for clin
<正>Imagine a world where every toxin:from the blood-cell destroying proteins of staphylococcus,to bee sting venom,snake bites,and any other type of poison coul
Hepatitis B virus(HBV) infection is a severe global health problem. In recent years, mutations as an essential element in the HBV evolution have been extensivel