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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

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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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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Evolutionary change in the tetrapod lineage, showing a transitional form. Evolutionary change in the tetrapod lineage, showing a transitional form.
Gastric cancer. In advanced stages of gastric cancer, malignant cells spread to form tumors in the l Gastric cancer. In advanced stages of gastric cancer, malignant cells spread to form tumors in the l
A computerized patient registration form used by offices with electronic health records. A computerized patient registration form used by offices with electronic health records.
A vehicle emission control information (VECI) sticker on a flexible fuel vehicle. A vehicle emission control information (VECI) sticker on a flexible fuel vehicle.
Chinese Barber Performing a Form of Percussion on a Seated Patron in China in the 1790s. Chinese Barber Performing a Form of Percussion on a Seated Patron in China in the 1790s.
What is the pKa and general acid strength of formic acid if its conjugate base form has a pKb ... What is the pKa and general acid strength of formic acid if its conjugate base form has a pKb ...
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