THE WEEK’S MOST POPULAR CURRENT R&B SONGS ACROSS ALL GENRES, RANKED BY STREAMING ACTIVITY DATA BY ONLINE MUSIC SOURCES TRACKED BY LUMINATE, RADIO AIRPLAY AUDIENCE IMPRESSIONS AS MEASURED BY ...

Sinus bradycardia refers to a slower than typical heart rate. It can be caused by an underlying condition, but not always. Learn the symptoms and causes.

Also, this association was observed in the different subgroups of patients, such as those with witnessed arrest, with bystander CPR or with shockable rhythms.