A standardized definition to capture structural degeneration of surgical and transcatheter bioprosthetic aortic valves, as well as recommendations for the timing of clinical and imaging assessments, ...

The US is facing a reckoning about issues of racial injustice following the death of George Floyd, Breonna Taylor, Ahmaud Arbery and others. Here are explanations of common terms and phrases used in ...

Telomerase is required to maintain repetitive G-rich telomeric DNA sequences at chromosome ends. To do so, the telomerase reverse transcriptase (TERT) subunit reiteratively uses a small region of the ...