Haimovitz, 50, along with frequent collaborator, pianist and former host of NPR’s “From the Top,” Christopher O’Riley, 69, think they may have decoded Bach’s true sound at long last through intensive ...
The S1 heart sound happens when the tricuspid and mitral valves close. A loud S1 may mean there is a problem with the heart, like mitral stenosis or tachycardia. Mitral stenosis is when the mitral ...
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