百科全書 (Encyclopedia) :擷取古今中外人類知識的精華

專科百科全書

Health & Medical Encyclopeidas

The adam Health Illustrated Encyclopedia
includes over 4,000 articles about diseases, tests, symptoms, injuries, and surgeries.
It also contains an extensive library of medical photographs and illustrations.

Medical Encyclopedia
Want to know more about a health topic? Wondering about a specific symptom
or disease condition? Browse through the alphabetical listings of the Medical Encyclopedia.

ARIC's AIDS Medical Encyclopedia

 

一般百科全書 General Encyclopedias

Britannica.com - Nearly boundless research tool.

Columbia Encyclopedia - Full text at Bartleby.com.

Encarta Online - Abridged version of software.

Encyclopedia.com - Simple and free encyclopedia.

Information Please - Encyclopedia and dictionary in one.

Symbols.com - Encyclopedia of graphic symbols.

xrefer - Encyclopedia, thesaurus and quotations in one