National Library of Medicine. Medical subject headings: Suplement to index medicus.
Lua i Stíl Chicago (17ú heag.)National Library of Medicine. Medical Subject Headings: Suplement to Index Medicus.
Lua MLA (8ú heag.)National Library of Medicine. Medical Subject Headings: Suplement to Index Medicus.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.