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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

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Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

A revised animal phylogeny based on molecular data of SSU rRNA A revised animal phylogeny based on molecular data of SSU rRNA
Meta-analysis of 18 studies shows that aerobic exercise causes better performance in older adults on Meta-analysis of 18 studies shows that aerobic exercise causes better performance in older adults on
Flynn Effect IQ scores have risen across developed countries in recent decades. Source: Flynn (199 Flynn Effect IQ scores have risen across developed countries in recent decades. Source: Flynn (199
Flow data for a healthy donor (top panel) and a HIV positive patient. CD3 is a T-cell marker, CD4 is ... Flow data for a healthy donor (top panel) and a HIV positive patient. CD3 is a T-cell marker, CD4 is ...
Find a quadractic equation that models the data in standard form Find a quadractic equation that models the data in standard form
data data
Video: The Lac Operon in E. Coli

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