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In 1864, the first barbiturate (barbituric acid) was synthesized.

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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

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The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Down Syndrome Down Syndrome
Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa
Girl with Down syndrome. Girl with Down syndrome.
The Split-Brain Syndrome The Split-Brain Syndrome
Patient with DiGeorge syndrome. Note low set ears and wide set downward slanting eyes; often these ... Patient with DiGeorge syndrome. Note low set ears and wide set downward slanting eyes; often these ...
The relationship between maternal age and the frequency of trisomy 21 (Down syndrome). The risk incr The relationship between maternal age and the frequency of trisomy 21 (Down syndrome). The risk incr
Video: Cardiac Cycle (Part 4 of 4)

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