| English | eng-000 |
| National Library of Medicine | |
| English | eng-000 | U.S. National Library of Medicine |
| English | eng-000 | United States National Library of Medicine |
| suomi | fin-000 | National Library of Medicine |
| suomi | fin-000 | U.S. National Library of Medicine |
| suomi | fin-000 | Yhdysvaltain kansallinen lääketieteen kirjasto |
| français | fra-000 | NLM |
| français | fra-000 | United States National Library of Medicine |
| português | por-000 | National Library of Medicine |
| русский | rus-000 | Национальная медицинская библиотека |