A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
-A-
Abridged
Index Medicus (AIM) - A National Library of Medicine (NLM) bibliography
of articles from 121 English language clinical journals arranged
in subject and author sections. It was designed for individual practitioners
and libraries of small hospitals and clinics. This publication ceased
following the Volume 28, Number 12 (December 1997) issue. While
AIM ceased publication, it remains a subset limit within PubMed.
AIDS Subset - This subset strategy was created to facilitate searching for subjects
in the area of AIDS. It is based on search strategies used for creating
NLM's AIDSLINE® database. This subset can also be used in a
search as aids [sb].
AIDSLINE® - AIDS Information Online is a database of bibliographic citations
to literature covering research, clinical aspects and health policy
issues about AIDS and related topics.
AIM -
see Abridged Index Medicus (AIM)
Author Index - see Index
automatic
explosion (explode) - In PubMed, MeSH (Medical Subject Headings)
terms (as well as any subheading that is the top of a "subheading
tree") are "exploded" automatically to retrieve citations that carry
the specified MeSH heading (or subheading) and also retrieve citations
that carry any of the more specific MeSH headings (or subheadings)
indented beneath it in the Tree structure.
Automatic
Term Mapping - The process used by PubMed to find a match to
unqualified terms that are entered into the query box. Untagged
terms are matched (in this order) against subjects using the MeSH (Medical Subject
Headings) translation table, journals using the Journals translation table, and authors and investigators, using the the
Full Author translation table, Author index, Full Investigator translation table and Investigator index. If a match is
found in any translation table, the mapping stops. When subject or journal matches are found, the query and individual terms are also searched in All Fields. If no match
is found in any tables, terms are searched in All Fields and ANDed together.
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-B-
Bioethics
Subset - This subset strategy was created by NLM and the Kennedy
Institute of Ethics, Georgetown University to facilitate searching
for citations to articles in the area of bioethics. This subset
can also be used in a search as bioethics [sb].
bookmarks - Bookmarks save the addresses of your favorite sites, so you can
return to them quickly without having to retype the address. In
PubMed, bookmarks are used to save search strategies. In some browsers,
bookmarks are called favorites.
Bookshelf (Books) - In collaboration with authors and publishers,
the National Center for Biotechnology Information (NCBI) is adapting
biomedical books for the web.
Boolean - Boolean is a logic system. Using the "AND" operator between terms
retrieves documents containing both terms. "OR" retrieves documents
containing either term. "NOT" excludes the retrieval of terms from
your search. Use "NOT" with caution.
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Clinical
Queries - Specialized PubMed searches intended for clinicians
to limit retrieval to articles that report research conducted with
specific methodologies.
ClinicalTrials.gov -
offers up-to-date information for locating federally and privately
supported clinical trials for a wide range of diseases and conditions.
A clinical trial (also clinical research) is a research study
in human volunteers to answer specific health questions.
Complementary
Medicine Subset - This subset strategy was created using terms
from the Alternative Medicine branch of MeSH, as well as additional
terms and names of MEDLINE journals provided by The National Center
for Complementary and Alternative Medicine. It is provided to facilitate
searching for subjects in the area of complementary and alternative
medicine. This subset can also be used in a search as cam [sb].
Core Clinical
Journals - PubMed journal subset limit consisting of the 121
English language clinical journals formerly published as the Abridged
Index Medicus.
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-E-
Entrez - The search and retrieval system that integrates information from
the National Center for Biotechnology (NCBI) databases. These databases
include nucleotide sequences, protein sequences, macromolecular
structures, whole genomes, and MEDLINE, through PubMed.
exploding - see automatic explosion (explode)
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-F-
favorites - see bookmarks
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-G-
GenBank® - The National Institutes of Health (NIH) genetic sequence database.
GenBank is an annotated collection of all publicly available DNA
sequences.
Genome database - The Entrez Genome database at the National Center for Biotechnology
(NCBI) contains the whole genomes for over 600 organisms. The genomes
represent both completely sequenced organisms and those for which
sequencing is in progress. All three main domains of life - bacteria,
archaea, and eukaryota - are represented, as well as many viruses
and mitochondria.
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-H-
History of
Medicine Subset - This subset strategy was created by NLM's
History of Medicine Division to facilitate searching for subjects
in the history of medicine. This subset can also be used in a search
as history [sb].
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-I-
Index - An alphabetical listing of the terms found on database records
and the number of records on which the terms are found. In PubMed
there are several indexes including an All Fields Index as well
as indexes for specific search fields including Author Name, Title
Word, and Text Word indexes among others.
In Process - records currently being reviewed for quality control and the addition
of MeSH indexing terms. These records carry the notation [PubMed
- in process].
ISSN - International Standard Serial Numbers - A unique code used for
identifying serial publications, such as periodicals, newspapers,
annuals, journals and monographic series.
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-J-
Journals
Translation Table - The PubMed Journals Translation Table is
an alphabetical list of full journal titles, MEDLINE journal title
abbreviations, and International Standard Serial Numbers (ISSNs).
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-L-
LinkOut -
Allows publishers, aggregators, libraries, biological databases,
sequence centers, and other Web resources to display links to
their sites on items from the Entrez databases (including PubMed).
These links can take you to the provider's site to obtain the
full-text of articles or related resources, e.g., consumer health
information.
There may be a charge to access the text or information.
Loansome
Doc - A feature of PubMed for users to order documents
found in MEDLINE®. It is available to users in the United States
and
any country outside of the United States.
LocatorPlus (locatorplus.gov)
- NLM’s catalog of books, journals, and audiovisuals with
holdings, availability, MARC records, and more.
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-M-
Medical Subject
Headings - see MeSH
MEDLINE® - The National Library of Medicine's® (NLM) premier bibliographic
database that contains over 13 million references to journal articles
in life sciences with a concentration on biomedicine.
MedlinePlus® - The National Library of Medicine's (NLM's) MedlinePlus is a Web-based
database designed to assist you in locating authoritative health
information. It contains pages of carefully selected links to Web
resources including dictionaries, directories, organizations, news
sources and health topics.
MeSH - The National Library of Medicine's (NLM's) controlled vocabulary
thesaurus.
MeSH Major
Topic - The MeSH concepts that are the main points of the article.
MeSH Translation
Table - The PubMed MeSH Translation Table is an alphabetical
list of MeSH Terms, Subheadings, See-References for MeSH Terms,
Unified Medical Language System mappings, and Names of Substances
and synonyms to the Names of Substances.
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-N-
narrower
term - A term that is more specific in meaning than the more
general term it is related to in a hierarchical structure.
NLM Catalog (nlmcatalog.nlm.nih.gov) - An Entrez database providing
an alternate way to search books, journals, audiovisuals, electronic,
and other materials with
links to LocatorPlus holdings and availability.
Nucleotide
database - Contains nucleotide sequence data from GenBank, the
European Molecular Biology Laboratory (EMBL), and the DNA Database
of Japan (DDBJ), the members of the tripartite international collaboration
of sequence databases. Sequence data is also incorporated from the
Genome Sequence Data Base (GSDB) and patent sequences are incorporated
through arrangements with the U.S. Patent and Trademark Office (US
PTO), and via the collaborating international databases from other
international patent offices.
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-O-
OLDMEDLINE
- citations
without abstracts that were originally
printed in hardcopy indexes published from 1950 through 1965.
OMIM - The Online Mendelian Inheritance in Man. A catalog of human genes
and genetic disorders authored and edited by Dr. Victor A. McKusick
and his colleagues at Johns Hopkins and elsewhere, and provided
through NCBI. The database contains information on disease phenotypes
and genes, including extensive descriptions, gene names, inheritance
patterns, map locations and gene polymorphisms.
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-P-
Phrase List - PubMed's Phrase List is an alphabetical list of several hundred
thousand phrases created from MeSH Terms, Unified Medical Language
System Terms, and Names of Substances.
PMID - The unique identifier assigned to a record when it enters PubMed.
PopSet database - Contains sequences submitted as a set from a population, phylogenetic
or mutation study describing events such as evolution and population
variation.
Protein database - Contains protein sequence data from the translated coding regions
from DNA sequences in GenBank, the European Molecular Biology Laboratory
(EMBL), and the DNA Database of Japan (DDBJ) as well as protein
sequences submitted to Protein Information Resource (PIR), SWISSPROT,
Protein Research Foundation (PRF), and Protein Data Bank (PDB).
Publication Types - Describe the type of material the article represents (e.g., Review, Clinical Trial, Retracted Publication, Letter).
Publisher-supplied
citations - PubMed citations received electronically from publishers.
These citations carry the notation [PubMed - as supplied by publisher].
PubMed Central - NLM's digital archive of life sciences journal literature. Access
to this literature is free and unrestricted.
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-Q-
qualified
terms - Terms that are entered into the PubMed query box with
a search field tag (e.g., [mh]).
query box - The active box at the top of every PubMed page where search terms
are entered.
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-R-
Related Articles - A PubMed feature that uses a word-weighted algorithm to compare
words from the title, abstract, and MeSH headings to calculate a
set of PubMed citations that are closely related to the selected
article.
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-S-
selectively
indexed journal - A multidisciplinary journal for which the
National Library of Medicine (NLM) selects only the articles that
pertain to biomedicine and the life sciences for indexing for the
MEDLINE database.
Space Life
Sciences Subset - This subset strategy was developed by NLM
and the NASA SPACELINE Office and is intended to retrieve citations
of interest to those working in the field of space life sciences
research. This subset can also be used in a search as space [sb].
stopwords - A list of common or general terms (e.g., prepositions, and articles)
that are not retrieved when searching PubMed because they appear
in too many records.
Structure
database - The Molecular Modeling Database (MMDB) contains experimentally-determined,
three-dimensional protein structures.
subheadings - Qualifiers used by the National Library of Medicine (NLM) for
indexing in conjunction with MeSH (Medical Subject Headings) for
MEDLINE. Subheadings are used to further describe a particular aspect
of a MeSH concept.
Systematic
Reviews - This strategy is intended to retrieve citations identified
as systematic reviews, meta-analyses, reviews of clinical trials,
evidence-based medicine, consensus development conferences, guidelines,
and citations to articles from journals specializing in review studies
of value to clinicians. This subset can be used in a search through
the Clinical Queries screen or as systematic [sb].
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-T-
Taxonomy
database - Indexes over 55,000 organisms that are represented
in the sequence databases with at least one nucleotide or protein
sequence. The Taxonomy Browser can be used to view the taxonomic
position or retrieve sequence and structural data for a particular
organism or group of organisms.
Toxicology
Subset - This subset strategy was created by NLM's Specialized
Information Services to facilitate searching for subjects in the
area of toxicology. This subset can also be used in a search as
tox [sb].
TOXNET -
The National Library of Medicine's (NLM's) TOXNET provides access
to a cluster of databases on toxicology, hazardous chemicals,
and
related areas.
truncation - The use of a symbol to search only part of a term to retrieve
variant endings of that term. The truncation symbol in PubMed is
"*."
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UMLS® - see Unified Medical Language System (UMLS)
Unified
Medical Language System (UMLS) - The National Library of Medicine's
(NLM's) project to develop and distribute multi-purpose, electronic
"Knowledge Sources" and associated lexical programs.
unqualified
terms - Terms that are entered into the PubMed query box without
a search field tag (e.g., [mh]).
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