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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Placenta previa, longitudinal section showing the placenta growing over the opening into the cervix. Placenta previa, longitudinal section showing the placenta growing over the opening into the cervix.
Claude Monet, Water Lilies, Morning: Willows (central section and right side). Claude Monet, Water Lilies, Morning: Willows (central section and right side).
Comparison of E-type Climates Comparison of E-type Climates
Sagittal section, medial view of the pons Sagittal section, medial view of the pons
Medial view of sagittal section Medial view of sagittal section
How many electrons flow past a given cross section of the wire in 10.3 min? electrons How many electrons flow past a given cross section of the wire in 10.3 min? electrons
Video: Types of synapses - electrical & chemical

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