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Lampreys (sometimes also called lamprey eels) are a family of jawless fish
The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland.
Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp
Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
Children with disabilities used to be sent to special schools. In a process called mainstreaming or ...