Science Policy

PubMed Central® (PMC) is a free archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM). In keeping with NLM’s legislative mandate to collect and preserve the biomedical literature, PMC serves as a digital counterpart to NLM’s extensive print journal collection. Launched in February 2000, PMC was developed and is managed by NLM’s National Center for Biotechnology Information (NCBI).

PMC has material dating back to mid- to late-1800s or early 1900s for some journals.

PubMed indexes over 4,000 biomedical, nursing, dentistry and related journals, with over 21 million citations in MEDLINE, PreMEDLINE and related databases. PubMed is produced by the National Center for Biotechnology Information (NCBI) and provides links between article citations and relevant data in other NCBI ENTREZ databases, including Nucleotide and Protein Sequences, Protein Structures, Complete Genomes, Taxonomy, and others.

Journal Literature: 1950 to present Selected Online Books

Africa Development Indicators contains over 1,600 indicators and time series from 1961 to the present for 53 countries. Data include social, economic, financial, natural resources, infrastructure, governance, partnership, and environmental indicators. The ADI Data Availability Query shows where data is available for a given country, series, and year. It contains the value "1" for available data and ".." for missing data.

1961-

You can find official statistics produced by countries and compiled by United Nations data system, as well as estimates and projections. The domains covered are agriculture, education, energy, industry, labour, national accounts, population and tourism. You can also find indicators such as Millennium Development Goals.

The World Development Indicators (WDI) provides a comprehensive selection of economic, social and environmental indicators, drawing on data from the World Bank and more than 30 partner agencies. The database covers more than 900 indicators for 210 economies with data back to 1960. Specific series and countries/groups can be selected for specific year ranges, and data can be exported.

1960 -

PubMed indexes over 4,000 biomedical, nursing, dentistry and related journals, with over 21 million citations in MEDLINE, PreMEDLINE and related databases. PubMed is produced by the National Center for Biotechnology Information (NCBI) and provides links between article citations and relevant data in other NCBI ENTREZ databases, including Nucleotide and Protein Sequences, Protein Structures, Complete Genomes, Taxonomy, and others.

This version has links to full text available to UM affiliates.

1950 to present; journal literature only 1950 to present

Indexes and abstracts federal statistical publications since 1974, business and state government publications since 1980, and international agency publications since 1983. Provides links to full text of 15% of federal publications. 

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1974 -