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Author Question: Unlike the contribution margin in dollars, the contribution margin ratio cannot be used to determine ... (Read 71 times) |
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.