网站简介：UK medical portal for healthcare professionals. Offers specialty sites, databases, journals, online textbooks, organizations and jobs.
网站简介：Consumer medical search engine comprising articles, patient support groups, glossary, questions and answers.
网站简介：Search several resources simultaneously for medical terminology, medical abbreviations, journals, and drug names.
网站简介：Simultaneously search multiple life sciences databases at the National Center for Biotechnology Information (NCBI).
网站简介：This tool has the ability to query other search engines, also provides a discussion forum, medical spelling and drug acronym devices. All users must register and pay annual membership fee.
网站简介：The National Library of Medicine Gateway allows users to search in multiple retrieval systems at the U.S. National Library of Medicine.
网站简介：A tool from Health on the Net that searches the full text of 60,000 medical documents. Searches can be narrowed by location or type of source.
网站简介：Dr. Claudia Krenz provides search boxes and instructions for specialist search tools, mainly maintained by the National Library of Medicine.