Atresia

Atresia is a condition in which an orifice or passage in the body is (usually abnormally) closed or absent.[1]

  1. ^ Dorland's illustrated medical dictionary. Dorland, W. A. Newman (William Alexander Newman), 1864-1956. (32nd ed.). Philadelphia, PA: Saunders/Elsevier. 2012. p. 174. ISBN 978-1-4160-6257-8. OCLC 706780870.{{cite book}}: CS1 maint: others (link)