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http://eskify.com/10-greatest-discoveries-that-changed-the-world/ WebWhat are the top 6 medical discoveries of all time? 7 Medical Inventions that Changed Hospitals Forever Stethoscope (Invented in 1815) Anesthesia (Invented in 1846) X-ray (Invented in 1895) Antibiotics (Invented in 1907) Disposable Catheter (Invented in 1944) Cardiac Defibrillator (Invented in 1947) poweredge r340 firmware update
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