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A service of the U.S. National Library of Medicine® | |
Look up a word by its first letter:
Genetics Home Reference obtains definitions from several sources.
at the National Library of Medicine
at the National Institutes of Health
at the U.S. Department of Energy
by Merriam-Webster Inc.
from the University of Washington and Children's Health System, Seattle
from the National Cancer Institute
from the National Human Genome Research Institute
See also Understanding Medical Terminology.
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