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Wood first appeared in plants called progymnosperms.
Laparoscopy. A lighted endoscope specialized for insertion into the abdomen, called a laparoscope, i
Rubella rash in a young child. Rubella is also called 3-day measles or German measles.
A thin cleft, called the synapse, separates one cell from another.
A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin
Chromosomal involvement and translocation in familial Down syndrome