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Specialized and Medical Search Engines (Part 1)Specialized and medical search engine charts compiled by Richard Terrass,
MEd, RT(R), Dept. of Radiology, Massachusetts General Hospital. |
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| Databases indexed | Interface | Boolean operators | Proximity searching | Search limiters | ||
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| Avicenna | Outlines in Clinical Medicine, MEDLINE¨ Current 1993- , MEDLINE¨ Back 1990-1992, AIDSLine, AIDS Drugs, AIDS Trials, MeSH (definitions) | Default simple search. Advanced option available offering Natural Language, Semantic, or Meaning Search. Form-based. | Implied OR in simple search. AND / OR in Advanced Search.. | Use ( ) to group. | Keyword, MeSH, Author's Name, Journal Title, Language, Abstract availability, Date of Publication, Article Class, Type of Journal | |
| Medscape | MEDSCAPE, MEDLINE (backfiles to 1966), AIDSLINE, Keywords | Forms-based. Basic and Advanced search. | AND, OR, NOT in Advanced Search | Use ' , -, / for proximity and ( ) for logical expression order. | Keyword, author, database, author name, title, abstract | |
| Healthgate | MEDLINE | Form-based. Default simple search. Advanced search available. | AND, OR, XOR, NOT, NOT SAME in advanced search | ADJ, NEAR, WITH, SAME, NOT WITH, NOT NEAR, NOT ADJ in advanced search | Date of publication, abstract availability, English language, age group, journal subset, article type | |
| NlightN | MEDLINE, Index Medicus (Abridged), Library of Congress, and several hundred other public and private databases in addition to the WWW | Form-based. Simple and advanced search. Advanced search allows you to search Within Field, Across Fields, and Alphabetically. Advanced search can get very complex. | Simple search uses & (AND), | (OR), ^ (NOT) | ( ) for logical expression order | Filters based on just about anything you can think of in advanced search. Filters are form-based. | |
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Specialized and Medical Search Engines (Part 2)Specialized and medical search engine charts compiled by Richard Terrass,
MEd, RT(R), Dept. of Radiology, Massachusetts General Hospital. |
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| Special features | Capitalization recognition | Phrase searching | Wildcards/ Truncation |
Availability of help | |
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| Avicenna | Some features require registration | yes | "" | Use wildcards * and ? and fuzzy-spelling qualifier ~. | Detailed help available |
| Medscape | Some features require registration. Document retrieval by mail or fax for a price. | yes | "" | ? | Decent help available for basic and advanced search |
| Healthgate | Some features require registration. Document retrieval by mail or fax for a price. | ? | ReADER translation allows you to enter phrase or concept in advanced search | no | Decent help available for advanced search. |
| NlightN | Some features require registration. Brief cite free. Full abstract retrieval online for free or for a price depending on database. Document retrieval by mail or fax for a price. | no | no | Using search alphabetically, it is possible to achieve use truncated words or phrases | Detailed help available but can be difficult to use |
Finding Information on the Internet | Choosing the Right Search Tool | Search Tips | Internet Search Indexes | Internet Search Engines | Evaluating Internet Resources | Reference Desk | Medical Radiography Home Page
This site maintained by Richard Terrass, M.Ed., R.T.(R),
Dept. of Radiology, Massachusetts General Hospital. Address questions or
comments to ricter@wn.net
Last updated Nov 29, 1996