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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
![A tracheotomy tube in place, inserted through an opening in the front of the neck and anchored withi](https://biology-forums.com/gallery/47/medium_14755_10_09_12_7_14_27_8496830.jpeg)
![Horizontal stroking of the abdomen. Place a hand on either side of the waist, fingers pointing away ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_1_14_07_331061665.jpeg)