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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Pap smear. Cells of the cervix (shown in the center) change in appearance as they progress through Pap smear. Cells of the cervix (shown in the center) change in appearance as they progress through
Rate of Residential Change, Past Year, in the United States Rate of Residential Change, Past Year, in the United States
Lilly Martin Spenser’s painting, Domestic Happiness (1844), reflects the change in attitudes toward Lilly Martin Spenser’s painting, Domestic Happiness (1844), reflects the change in attitudes toward
The change in the net of an irradiance, in Wm-2, at the tropopause The change in the net of an irradiance, in Wm-2, at the tropopause
For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ... For each function f(x) = 6x^2 - 4, estimate the instantaneous rate of change for the given ...
Change in Blood Pressure through the Systemic Circuit Change in Blood Pressure through the Systemic Circuit
Video: Primary and secondary response to infection

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