A White House official said the US has seen "early indications" that the fatal crash of an Azerbaijan Airlines plane was caused by a Russian air defense system. White House national security ...
A U.S. official tells NBC News there are early indications that the passenger plane that crashed in Kazakhstan may have been hit by a Russian anti-aircraft system. The official said if it turns ...
Background: Approximately 20,000 permanent pacemakers (PPMs) are implanted annually for bradycardia or atrioventricular (AV) block after cardiac surgery. Little is known about the long-term pacing ...