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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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There are more nerve cells in one human brain than there are stars in the Milky Way.

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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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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

The chromosomal basis of allele segregation. The chromosomal basis of allele segregation.
A second-division segregation pattern in a fungal octad A second-division segregation pattern in a fungal octad
Meiosis Accounts for the Segregation of Alleles Meiosis Accounts for the Segregation of Alleles
Violence and Segregation in Watts, Los Angeles, August 11, 1965 Violence and Segregation in Watts, Los Angeles, August 11, 1965
Marriages Between Whites and African Americans: The Race-Ethnicity of the Husbands and Wives Marriages Between Whites and African Americans: The Race-Ethnicity of the Husbands and Wives
Segregation of alleles for seed color Segregation of alleles for seed color
Video: Hormonal feedback loop components

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