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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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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Living arrangements of older adults in the United States vary widely depending on gender and ... Living arrangements of older adults in the United States vary widely depending on gender and ...
In many industrialized nations, men are having children at older ages, raising the possibility of ... In many industrialized nations, men are having children at older ages, raising the possibility of ...
The vast majority of older adults live in their own homes, even when they need special equipment or ... The vast majority of older adults live in their own homes, even when they need special equipment or ...
Red Flags for Alcohol Abuse in Older Adults Red Flags for Alcohol Abuse in Older Adults
Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults. Two ways of treating blocked coronary arteries, the main cause of heart attacks in older adults.
An older woman with wrinkled skin, gray hair, and darker teeth, smokes a cigarette. An older woman with wrinkled skin, gray hair, and darker teeth, smokes a cigarette.
Video: Hemodynamics Animation

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