The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
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Cyanide works by making the human body unable to use oxygen.
Examples of cell-to-cell communication based on the distance between cells
microbiological communication
Culturally Sensitive Communication
Therapeutic Communication Skills
Ecosystems are systems of interacting biotic and abiotic components