Congenital disordercongenital disorder is a medical condition or defect that is present at or before birth (for example, congenital heart disease). These conditions can be a result of heredity or environmental factors - meaning a congenital condition could be acquired during the fetal stage of development, or as a result of the genetic make up of the parents (or both).
The National Library of Medicine or MEDLINE/PubMed MeSH (medical subject heading) term
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