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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

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Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

The human birth process as an example of positive feedback. The human birth process as an example of positive feedback.
Invasive species in Canada include (a) zebra mussels, Dreissena polymorpha, (b) sea lamprey, Petromy Invasive species in Canada include (a) zebra mussels, Dreissena polymorpha, (b) sea lamprey, Petromy
Frozen human iPS cells Frozen human iPS cells
Before the advent of vaccinations and antibiotics, infectious diseases such as cholera were the scou Before the advent of vaccinations and antibiotics, infectious diseases such as cholera were the scou
The Human Eye and its Structures The Human Eye and its Structures
The relation between the physical and perceptual dimensions of sound. The relation between the physical and perceptual dimensions of sound.
Video: DNA close up Animation

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