Nation Master
Produced by Rapid Intelligence, a web technology company based in Sydney, Australia.

Source: A mixture of governmental and private data sources
Access: Free to all users.
Coverage: Varies by source
Updated: Every few weeks
Vocabulary: Keyword
Description: Nation Master is an Australian company that gathers data from a variety of international sources in order to present an easy-to-use graphical comparison of countries in a number of topic areas. Users may browse prepared country rankings, or select from more than 600 statistical variables available to create customized charts. While most statistics come from international agencies or organizations, such as the U.S. Census Bureau, CIA World Factbook, WHO, OECD and UNESCO, other sources include various think tanks, advocacy organizations, commercial entities, and, in one case, an individual with subject expertise. Sources for all facts and figures are cited, which researchers will especially appreciate. Note that there are some inconsistencies in providing statistical definitions for all data, not all countries appear in all data results, and some links are broken.

National Criminal Justice Reference Service Abstracts Database and NCJRS Virtual Library
Produced by the U.S. Office of Justice, Department of Homeland Security, Executive Office of the President.

Source: U.S. Department of Justice
Access: Free to all users.
Coverage: Not stated
Updated: Not stated
Vocabulary: Subject vocabulary, browsable onsite
Description: The National Criminal Justice Reference Service Abstracts Database is a federally funded resource offering justice and substance abuse information to support research, policy, and program development worldwide. The NCJRS Abstracts Database contains summaries of more than 180,000 criminal justice publications. A companion database, the NCJRS Virtual Library, includes the full text of over 7,000 documents published by NCJRS sponsoring agencies since 1995.

National Drug Code Directory
Produced by the Center for Drug Evaluation and Research (CDER), U.S. Food and Drug Administration (FDA).

Source: CDER
Access: Free to all users.
Coverage: Current information only
Updated: Quarterly
Vocabulary: Keyword
Description: The directory consists of prescription and selected over-the-counter, insulin, domestic, and foreign drug products that are in commercial distribution in the United States. It is searchable by product name, active ingredient, manufacturer, or NDC number.

The NDC System was originally established as an essential part of an out-of-hospital drug reimbursement program under Medicare. The NDC serves as a universal product identifier for human drugs.

National Guideline Clearinghouse (NGC)
Produced by the U.S. Agency for Healthcare Research and Quality, American Medical Association and American Association of Health Plans.

Source: NGC
Access: Free to all users.
Coverage: Current guidelines only
Updated: Weekly
Vocabulary: Keyword
Description: The NGC is a comprehensive database of evidence-based clinical practice guidelines and related documents, including: a utility for comparing attributes of two or more guidelines in a side-by-side comparison; syntheses of guidelines covering similar topics; links to full-text guidelines and/or ordering information for print copies; an electronic forum for exchanging information; and annotated bibliographies on guideline development methodology, implementation, and use. Includes guidelines from HSTAT.

National Limb Loss Information Center
Produced by the Amputee Coalition of America.

Source: Amputee Coalition of America
Access: Free to all users.
Coverage: Not stated
Updated: Daily
Vocabulary: NLLIC vocabulary, available online
Description: The library catalog of the National Limb Loss Information Center includes abstracts and some full text for journal literature, books, and other formats of material.

National Nutrient Database
Produced by U.S. Department of Agriculture, Agricultural Research Service.

Source: USDA Agricultural Research Service, Nutrient Data Laboratory
Access: Free to all users.
Coverage: Current information only
Updated: Not stated
Vocabulary: Keyword
Description: The National Nutrient Database provides composition data on foods available in the United States.

National Quality Measures Clearinghouse (NQMC)
Produced by the Agency for Healthcare Research & Quality (AHRQ), U.S. Dept. of Health and Human Services.

Source: NQMC
Access: Free to all users.
Coverage: Not stated
Updated: Weekly
Vocabulary: MeSH
Description: NQMC provides information about specific evidence-based health care quality measures and measure sets. Records include structured, standardized abstracts (summaries) about measurement tools and their development; a utility for comparing attributes of two or more quality measures in a side-by-side comparison; and links to full-text quality measures (when available) and/or ordering details for the full measure.

Natural Standard
Produced by Natural Standard.

Source: Natural Standard
Access: Direct access via campus computers. Off-campus access requires Jefferson Campus Key.
Coverage: Current information only
Updated: Varies by topic, 3-18 months
Vocabulary: Keyword
Description: Evidence-based information about alternative and complementary therapies includes foods, herbs & supplements, fitness, traditional therapies, diets, and more. Medical conditions are listed, with analysis of alternative approaches. Includes a nutrition database for raw and packaged foods, interaction checker and symptom checker for differential diagnosis.

NCBI BioSystems Database
Produced by The U.S. National Library of Medicine (NLM).

Source: National Library of Medicine
Access: Free to all users.
Coverage: Current information only
Updated: Not stated
Vocabulary: Keyword
Description: The NCBI BioSystems Database currently contains biological pathways from two source databases, KEGG and the EcoCyc subset of BioCyc, and will add other sources as they become available.

New Medicines in Development
Produced by .

Source: Pharmaceutical Research and Manufacturers of America
Access: Free to all users.
Coverage: Current information only
Updated: Not stated
Vocabulary: Searchable by company, drug name or disease/condition.
Description: A professional association representing the country's leading research-based pharmaceutical and biotechnology companies, PhRMA makes available a searchable database of new medicines its members are investigating. Entries give drug name, indications, company, and status of investigation. The PhRMA makes this site available as a public service, but gives no indication of the standards for inclusion.

NHS Economic Evaluation Database (NHSEED)
Produced by the Cochrane Collaboration.

Source: OvidSP
Access: Direct access via campus computers. Off-campus access requires Jefferson Campus Key.
Coverage: Not stated
Updated: Not stated
Vocabulary: Keyword
Description: he National Health Service (NHS) Economic Evaluation Database provides cost-benefit analyses about healthcare interventions. The NHS Economic Evaluation Database contains over 6000 abstracts of quality assessed economic evaluations. The database aims to assist decision-makers by systematically identifying and describing economic evaluations, appraising their quality and highlighting their relative strengths and weaknesses.

NIH Guide to Grants and Contracts
Produced by the U.S. National Institutes of Health (NIH).

Source: NIH
Access: Free to all users.
Coverage: 1992 - present
Updated: Weekly
Vocabulary: Keyword
Description: The official publication of NIH policies, procedures, and availability of funds. Occasionally, unofficial notices of interest to the scientific research community are published. The NIH considers applications for the support of basic or clinical biomedical, behavioral, and bioengineering research. Includes text from the guides, the Request for Applications (RFA's) and Program Announcements. For past awards, see the CRISP database.

NIH RePORTER (RePORT Expeditures and Results)
Produced by the National Institutes of Health (NIH).

Source: NIH
Access: Free to all users.
Coverage: 1985 - present
Updated: Weekly
Vocabulary: Keyword
Description: Catalog of research projects funded by NIH, searchable by many fields. Includes links to publications and patents resulting from NIH expenditures, linking via PubMed Central, PubMed, and the US Patent & Trademark Office. Replaces CRISP.

NLM Gateway
Produced by U.S. National Library of Medicine (NLM).

Source: NLM
Access: Free to all users.
Coverage: Varies by type of material, 1951 - present for journal articles
Updated: Weekly
Vocabulary: Varies by type of material
Description: The NLM Gateway allows users to search in multiple databases at the U.S. National Library of Medicine (NLM) via a single search interface. The Gateway includes: MEDLINE/PubMed, TOXLINE, LOCATORplus, MEDLINEplus, Clinical Trials.gov, DIRLINE, Meeting Abstracts, HSRProj, OMIM and HSDB: Hazardous Substances Data Bank.