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Author Question: The higher the barriers to entry in an industry, the greater is the threat of competition. ... (Read 60 times) |
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.
The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.