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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.

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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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.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Human embryonic stem cells differentiated to neural cells Human embryonic stem cells differentiated to neural cells
Human Sperm greatly enlarged Human Sperm greatly enlarged
Human Back Muscles Human Back Muscles
Human hnRNP A1 protein can cycle in and out of the cytoplasm, but human hnRNP C Human hnRNP A1 protein can cycle in and out of the cytoplasm, but human hnRNP C
Behavior modification has been useful in raising the amount of social responding by children with ... Behavior modification has been useful in raising the amount of social responding by children with ...
Structure and function of human teeth. Structure and function of human teeth.
Video: Protein digestion - stomach & small intestine

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