The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Black Knapweed
Early in the twentieth century, when malnutrition was common, companies such as this one advertised
MRI image of brain cancer. The bright blue color indicates where the cancer has metastasized.