Other Bibliography Search Engines
- National Library of Medicine's literature search site
- comprises more than 19 million citations for biomedical literature from MEDLINE, life science journals, and online books.
- Quality of Life Instruments Database
- contains a list of over 1000 PRO instruments and is structured in two levels of access:
- a first level accessible to all users free of charge and which contains for over 300 instruments the following information: full abbreviated name of the questionaire, author(s), objective, pathology, disease, type of instrument, population, mode of administration, original language and list of translations.
- a second level is based on yearly subscriptions