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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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).
Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.