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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Large numbers of plant species can flower at once in this grassland in Kinsella, Alberta. Large numbers of plant species can flower at once in this grassland in Kinsella, Alberta.
The energy input and output of glycolysis. The energy input and output of glycolysis.
Covalent regulation of enzyme activity. Covalent regulation of enzyme activity.
Energy Transfer Processes: Forced Convection Energy Transfer Processes: Forced Convection
Regulation of the mammalian pyruvate dehydrogenase by feedback inhibition and covalent modification ... Regulation of the mammalian pyruvate dehydrogenase by feedback inhibition and covalent modification ...
Catalysis of peptide bond hydrolysis by chymotrypsin (part 2) Catalysis of peptide bond hydrolysis by chymotrypsin (part 2)
Video: Interview with an Anorexic Woman (Part 1 of 2)

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