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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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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.

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Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Some male birds and mammals congregate in communal courting grounds called leks. Some male birds and mammals congregate in communal courting grounds called leks.
Summation of Heart Sounds, Fixed Splitting of S2 Summation of Heart Sounds, Fixed Splitting of S2
An enlarged heart showing the results of cardiomyopathy. An enlarged heart showing the results of cardiomyopathy.
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Systemic Circulation of the Heart Systemic Circulation of the Heart
Video: Osmosis - Isotonic, Hypotonic, and Hypertonic​ Solutions

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