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Bipolar disease. The term bipolar means “pertaining to two poles.” The individual with this form of
Gangrene of the toes and foot as a result of an infection often means eventual amputation.
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
A sphere represented by means of modeling.
The Mulleta family of Ethiopia, described in the opening vignette.
This living protozoan is the common Paramecium multimicronucleatum that moves by means of its numero