The rhythm is either sinus rhythm or not sinus rhythm. Sinus rhythm refers to the origination of the electrical activity coming from the sinus node — also known as the sinoatrial node, or SA node.
Let's learn how to play soccer and "Get Into The Rhythm" with Sonny Silooy, Jonathan Frias, Andrew Dykstra and DC United Academy. This part 5 would show you how to do "Defending", "Goal Keeping", and ...
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