Thermohaline circulation refers to the global system of ocean currents driven by variations in water density, itself controlled by temperature (thermo) and salinity (haline). This “global conveyor ...

aBeijing Key Laboratory of Surveillance, Early Warning and Pathogen Research on Emerging Infectious Diseases, Beijing Center for Disease Prevention and Control, Beijing 100013, China bBeijing Research ...

3D animation showing the effect of smoking on the lungs, highlighting damage to tissue, airways, and lung function. Royalty-free licenses let you pay once to use copyrighted images and video clips in ...

Some symptomatic patients manifest pulmonary hypertension (PH), despite normal pulmonary vascular resistance and pulmonary artery wedge pressure—a condition termed unclassified PH. Although ...