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nonePubMed: biomedical literature citations and abstracts
1PubMed Central: free, full text journal articles
3Site Search: NCBI web and FTP sites
4Books: online books
1OMIM: online Mendelian Inheritance in Man
noneOMIA: online Mendelian Inheritance in Animals

Wait Nucleotide: Core subset of nucleotide sequence records
noneEST: Expressed Sequence Tag records
noneGSS: Genome Survey Sequence records
noneProtein: sequence database
13Genome: whole genome sequences
noneStructure: three-dimensional macromolecular structures
noneTaxonomy: organisms in GenBank
Wait SNP: single nucleotide polymorphism
163Gene: gene-centered information
noneHomoloGene: eukaryotic homology groups
noneGENSAT: gene expression atlas of mouse central nervous system
300Probe: sequence-specific reagents
9Genome Project: genome project information
nonedbGaP: genotype and phenotype
noneUniGene: gene-oriented clusters of transcript sequences
noneCDD: conserved protein domain database
none3D Domains: domains from Entrez Structure
274UniSTS: markers and mapping data
227PopSet: population study data sets
Wait GEO Profiles: expression and molecular abundance profiles
3GEO DataSets: experimental sets of GEO data
Wait Cancer Chromosomes: cytogenetic databases
nonePubChem BioAssay: bioactivity screens of chemical substances
5PubChem Compound: unique small molecule chemical structures
119PubChem Substance: deposited chemical substance records
74Protein Clusters: a collection of related protein sequences

noneJournals: detailed information about the journals indexed in PubMed and other Entrez databases
22NLM Catalog: catalog of books, journals, and audiovisuals in the NLM collections
4MeSH: detailed information about NLM's controlled vocabulary


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