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2. Automated external defibrillator - Wikipedia

   en.wikipedia.org/wiki/Automated_external...

   An automated external defibrillator or automatic electronic defibrillator (AED) is a portable electronic device that automatically diagnoses the life-threatening cardiac arrhythmias of ventricular fibrillation (VF) and pulseless ventricular tachycardia, [1] and is able to treat them through defibrillation, the application of electricity which stops the arrhythmia, allowing the heart to re ...

3. Defibrillation - Wikipedia

   en.wikipedia.org/wiki/Defibrillation

   Defibrillation is a treatment for life-threatening cardiac arrhythmias, specifically ventricular fibrillation (V-Fib) and non-perfusing ventricular tachycardia (V-Tach). [1] [2] A defibrillator delivers a dose of electric current (often called a counter-shock) to the heart.

4. Man-portable air-defense system - Wikipedia

   en.wikipedia.org/wiki/Man-portable_air-defense...

   Chinese made QW-2 MANPADS of the Bangladesh Army An SA-18 (Igla) missile with launch tube and gripstock (top) and an SA-16 (Igla-1) missile and launch tube (bottom) A U.S. Marine fires a FIM-92 Stinger missile during a July 2009 training exercise in California.