IN 1888 Graham Steell described his now famous left-sternal-border diastolic murmur and attributed its origin to pulmonary regurgitation caused by high pressure in the pulmonary artery in patients ...

MEDICAL REPORTER MINDY BECERRA JOINS US WITH ONE YOUNG GIRL’S STORY. MINDY. ASHLEY. ONE CONGENITAL HEART DEFECT IS WHAT’S COMMONLY CALLED A HOLE IN THE HEART. OFTEN CHILDREN HAVE NO SYMPTOMS, BUT IF ...

Topological defects are quasiparticles whose topological nature provides some stability against perturbations. Skyrmions, domain walls, dislocations in crystals, vortices in superconductors and ...